2011 Chevy Silverado Heavy Duty Gets More Powerful and Efficient Duramax 6.6 and Allison Tranny

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2011 Chevy Silverado Heavy Duty Gets More Powerful and Efficient Duramax 6.6 and Allison Tranny
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The all-new 2011 Chevrolet Silverado Heavy Duty models might not look all that new and there’s a good reason for it. With tight budgets at GM as of late, the Silverado HD team was given limited funds to build the truck and so they chose to put the money where those who really need a heavy duty truck will appreciate it most. Aesthetically, the only real changes to the 2011 model are a new chrome bumper, a “power-dome” hood and a revised grille. Changes to the rest of the truck, however, are significant.

For starters, new Silverado HD models sit on new frames and come with an optional all-new 6.6-liter Duramax V8 and Allison 1000 six-speed transmission. The truck’s base tow rating is now 16,000 lbs, while a 3500 crew cab/long box can pull up to 20,000 lbs. For the record, that’s 2,400 lbs more than the RAM 3500 and 1,200 lbs more than the 2010 F-350 – although no 2011 F-350 stats are available. Maximum payload is now 6,335 lbs, well above both the Ford and Dodge, although (again) Ford claims segment-best payload… but that was before the new Silverado HD was unveiled.

With wheelbases ranging from 133.6 inches to 167.7 inches (depending on how you order your truck), along with wider front and rear tracks, the new Silverado HD delivers a smoother ride and better handling.

Chevy hasn’t given any new performance stats on the all-new 6.6-liter Duramax diesel, but has said it expects segment-best torque. The block itself is a carry-over from the past model but the majority of moving engine parts are new, as is the entire fuel system. NOx emissions are also down 63 percent thanks in part to an exhaust after treatment system that is used because it won’t interfere with the engine’s ability to create power. The Diesel Exhaust Fluid (DEF) used in the process does require refilling every 5,000 miles. In addition, the new engine is B20 biodiesel capable.

Chevy says the engine has been tested to 200,000 miles under extreme conditions, using what the engineers refer to as a “95th percentile” customer.

As for the new Allison transmission it has been strengthened to work with the added torque of the new engine and features an optional exhaust brake, Power Take Off and a Driver Shift Control (DSC). It’s also designed to work with the new Duramax engine to give improved fuel economy by 11 percent and Chevy says to expect a fuel range of 680 miles on the new 36 gallon tank.

In addition to the fuel economy improvements, Chevy claims improved acceleration with Duramax/Allison combo, resulting in a 0.3-second improvement to 60 mph and a 0.5-second improvement in the quarter-mile for a rating of less than 9 and less than 16 seconds respectively.

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A new front suspension with forged steel upper control arms and cast iron lower control arms is also a part of the 2011 package with the new front independent suspension now delivering a 25 percent improved front axle weight rating. The new 6,000 lb rating now means a snow plow can be used on all 4WD cab models equipped with the snow plow prep package. In addition, rather than a single torsion bar like on the previous model, the 2011 gets five different torsion bar rates for five different gross axle weight ratings, allowing height adjustability in accordance with the weight of a snow plow or other accessory.

As for the rear suspension, the leaf springs are now 20 percent wider, helping to improve the truck’s rear gross axle weight rating. Now 2500 models are rated to 6,200 lbs, while 3500 models get a 7,050 rating for single wheel or 9,375 of dualies. The new rear suspension is also designed to reduce wheel hop.

We could probably go on forever discussing the upgrades to the new 2011 Silverado HD, so we’ll try and wrap this up with a few more important things you should know. For 2011 the brakes are larger, measuring 14-inches at all four corners while the swept area of the brake pads has been increased with 13 percent more area covered on the front rotors and 17 percent more covered on the rear. Gone are 16-inch wheel fitments, with 17s now the new base wheel, while 20s can be had on the 2500HD.  Safety equipment includes StabiliTrak and Trailer Sway Control on all single-rear-wheel models as well as a new Hill Start Assist feature, that holds the truck for 1.5 seconds when leaving a stop on a hill. Chevy also says that under heavy load it has reduced noise vibration and harshness (NVH) by as much as 30 percent.

Finally, let’s not forget the standard engine, a 6.0-liter Vortec V8 and six-speed 6L90 automatic transmission. With no output numbers yet available, Chevy does claim roughly 90 percent of the engines torque will be available from 2000 rpm and that it will allow for a 13 percent increase in fifth-wheel towing for a total tow rating of 14,700 lbs.

GALLERY: 2011 Chevrolet Silverado 2500HD and 3500HD

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GALLERY: Duramax 6.6 and Allison 1000

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Official release and complete model specifications after the jump:

PRESS RELEASE

2011 CHEVROLET SILVERADO HEAVY-DUTY TRUCKS AT A GLANCE •    Segment-best towing (20,000 lb / 9,072 kg) and payload (6,335 lb / 2,873 kg) supported by all-new frames and strong suspensions for maximum capability •    Class-leading torque, class-leading fuel economy with up to 63-percent lower emissions and quicker acceleration with new 6.6L Duramax diesel mated to new Allison 1000 six-speed automatic transmission •    B20 biodiesel capable •    All-new exhaust brake system for greater feeling of control and reduced brake pad wear •    Comprehensive set of confidence- and control-related features, including trailer sway control, integrated trailer brake control, hill start assist, automatic grade braking and intelligent brake assist •    Bold and new exterior design features louvered hood, front bumper, grille and 20-inch wheels •    Extended cab models feature 170-degree-opening rear access doors for unobstructed access to the interior •    Purposeful technology, including available mobile WiFi, USB connectivity, Bluetooth connectivity, XM Satellite Radio, OnStar 9.0 and navigation •    Goes on sale this summer

BRING IT ON – 11 WAYS THE NEW 2011 CHEVROLET SILVERADO HEAVY-DUTY TRUCKS PROVE THEY’RE READY FOR ANY JOB OR COMPETITOR

CHICAGO – On a recent validation drive of the new, 2011 Chevrolet Silverado heavy-duty trucks, engineer Brent Deep towed a 20,000-pound (9,072 kg) trailer for 245 miles (400 km) along I-70 between Denver and Grand Junction, Colo. – and he barely touched the brakes the entire way.

Deep relied on the Silverado’s new, smart exhaust brake system to slow the truck/trailer combination on descents, helping prove the new system is suitable for the most demanding conditions. It was a drive across the heart of the Rocky Mountains and some of the interstate system’s steepest grades, with altitudes ranging from Denver’s approximately 5,000 feet (1,525 m) to more than 11,100 feet (3,400 m) at the Eisenhower Tunnel.

“It takes some courage to leave your foot off the brake, but the Silverado’s Duramax engine and Allison transmission perform the task with smoothness and confidence that really impresses,” said Deep. “Better still, the exhaust brake system can help extend brake pad life and help avoid overheating the brakes on long descents.”

The exhaust brake system feature is just one of the elements that makes the new 2011 Silverado 2500HD and 3500HD models the most capable in the industry. They go on sale this summer.

“We sought the input of our customers during the development of the 2011 Silverado HD to deliver a truck that meets or exceeds their every need,” said Jim Campbell, Chevrolet general manager. “It offers greater strength and capability – including class-leading fuel economy, trailering and payload ratings – and has more power, accelerates quicker and has lower emissions. That sounds like the very definition of no compromises.”

The Silverado heavy-duty lineup is broader than ever, with 11 2500HD models and eight single- and dual-rear-wheel 3500HD models – including a new 3500HD Crew Cab with a 6.5-foot cargo box. WT, LT and LTZ trim levels are offered, and popular features such as the EZ Lift tailgate and rearview camera system return. All models bring greater capability, improved ride and handling and a greater feeling of driver control. Depending on the model: •    Segment-best fifth-wheel towing capacity of 20,000 pounds (9,072 kg) •    Segment-best conventional towing capacity increases up to 23 percent, with a  maximum of 16,000 pounds (7,272 kg) •    Segment-best payload capability of 6,335 pounds (2,873 kg) on a complete vehicle •    Segment-best Gross Combined Weight Rating increases to 27,500 pounds (12,500 kg) •    Gross Vehicle Weight Ratings increases up to 17 percent to 13,000 pounds (5,909 kg) •    Front Axle Weight Rating increases by up to 25 percent to 6,000 pounds (2,721 kg) •    Snow plow capability is now enabled for all 4WD cab configurations

There are also enhanced powertrains, including a new Duramax 6.6L diesel/Allison 1000 six-speed transmission that offers the exhaust brake system, new front and rear suspensions, an improved brake system, hill start assist, trailer sway control system and more.

“Along with all their heavy-duty equipment, these trucks are designed to be stylish and refined, inside and out,” said Campbell. “We paid close attention to all the details, giving them a distinctive, muscular appearance on the exterior and a well-appointed interior with the comfort, convenience and safety features customers appreciate.”

Outside, the 2011 Silverado 2500HD and 3500HD models are distinguished by a power dome-style hood with a new, louvered design, as well as a new grille and full-width chrome steel front bumper. A new lineup of 17-, 18- and 20-inch wheel/tire combinations is featured, too (20-inch polished forged aluminum wheels are available on 2500HD).

Designers and engineers left almost no bolt unturned during the comprehensive redesign of the trucks. Here are 11 key elements that demonstrate the 2011 Silverado 2500HD and 3500HD are ready for any job and any competitor:

1. New frames In the quest to comprehensively redesign the Silverado HD chassis to improve durability and ride, while also supporting increased capability, engineers developed 11 all-new, fully boxed frame assemblies. The frames have increased cross sections and use more high-strength steel for greater durability, higher towing capacity and improved ride and handling; the front sections are hydroformed.

The bending and beaming stiffness of the frames is increased 92 percent and 20 percent, respectively, with the fully boxed sections enhancing torsional stiffness by a factor of five. Also, larger engine and transmission mounts, coupled with a 125-percent-stiffer front frame structure, provide greater vibration control, while hydraulic body mounts are incorporated under the cab section on extended and crew cab models for a more isolated feel inside.

Engineers addressed common customer and aftermarket uses when designing the new frames, including adding access holes to the rear frame section to enable easier installation of fifth-wheel/gooseneck-style hitches. Also, the frame-mounted hitch for conventional trailering is stronger, with a box-tube design. It supports up to 16,000 pounds (7,257 kg).

2. New and strong independent front suspension A completely redesigned independent front suspension system offers up to a 25-percent greater front axle weight rating – up to 6,000 pounds (2,721 kg) front gross axle weight rating (FGAWR) – enabling a snow plow to be used on all 4WD cab configurations with the available snow plow prep package, while also supporting improved ride and handling characteristics.

Silverado’s signature short-long arm/torsion bar front suspension design is retained, but now features new, forged steel upper control arms that are stronger and lighter than their predecessors. The new lower control arms are made of precision-machined cast iron to handle the greater loads. Five different torsion bar rates support five different front gross axle weight ratings (a single torsion bar was previously used for all models). This helps stabilize the range of trim heights of various models under load, while enhancing appearance, handling, durability, tire wear and alignment. The trim height is adjusted on each bar via a single bolt, easily allowing the height to be changed to account for the weight of a snow plow or other accessories.

The Silverado HD front suspension now uses a pair of urethane jounce bumpers on each side, instead of one, for improved load management; and there’s a new upper shock mount attachment design that’s positively connected to the frame with two fasteners. This design eliminates squeaks and clunks, while supporting higher load capability and increased durability.

Compared to competitors’ beam-axle front suspension, the Silverado’s independent front suspension provides a better ride, more accurate trim height control (with fewer parts) and greater flexibility to adjust the alignment for weight and tire sensitivity.

3. New asymmetrical leaf-spring rear suspension Commensurate with the Silverado HD’s greater strength and capability is a rear suspension designed to support greater loads. It features a new, larger asymmetrical leaf-spring design that also contributes to improved ride and handling characteristics.

The asymmetrical design is derived from unequal front and rear spring half lengths, which minimize axle hop and enhance traction control efficiency. 2500HD models feature a two-stage leaf-spring design, while 3500HD models have a three-stage design. All models feature 3-inch-wide (76 mm) leaf springs that are 20-percent wider than previous models.

The larger leaf-spring design supports increased rear gross axle weight ratings across the board. On the 2500HD models, the rating is 6,200 pounds (2,818 kg) – up from 6,084 (2,765). On 3500HD models, the rating increases to 7,050 pounds (3,204 kg) on single-rear-wheel models and 9,375 pounds (4,261 kg) on dual-rear-wheel models – the latter representing a nearly 14-percent increase over the previous 8,200-pound (3,727 kg) rating.

4. Segment-leading towing and payload capability Stronger frames, suspension systems with greater weight ratings and enhanced powertrain systems contribute to the Silverado HD’s class-leading towing and payload capability. The specifications charts included below outline capacities for each model and/or configuration, but here are the key facts: •    The maximum conventional (ball hitch) towing rating increases to 16,000 pounds (7,257 kg) •    A Silverado 3500HD crew cab/long box can tow up to 20,000 pounds (9,091 kg) with a fifth-wheel hitch. The 2010 Ram 3500 has a maximum rating of 17,600 pounds (8,000 kg) and the 2010 Ford F-350 is rated at a maximum of 18,800 pounds (8,545 kg). It should be noted that while Ford claimed segment-leading trailering and payload during its recent announcement of the 2011 Super Duty models, no towing ratings were issued •    The maximum payload (3500HD) is 6,335 pounds (2,873 kg) – that’s nearly 11 percent greater than the 2010 Ford F-350’s 5,730-pound (2,604 kg) rating and about 24 percent more than the 2010 Ram 3500’s 5,130-pound (2,331 kg) ratings. Again, while claiming segment-leading payload for the 2011 Super Duty models, Ford did not announce the ratings

5. New 6.6L Duramax diesel and Allison 1000 six-speed combination Helping the new 2011 Silverado HD trucks deliver their best-in-class capabilities is a new version of the workhorse Duramax 6.6L diesel and Allison 1000 six-speed automatic transmission powertrain combination. The Duramax 6.6L is more powerful and durable and the Allison 1000 is stronger and helps enable new features, including the exhaust brake system. Together, this improved version of a proven combination is also expected to deliver segment-best fuel economy.

The Duramax 6.6L’s new and improved features include: •    Horsepower and torque expected to top previous model (testing is ongoing – check media.gm.com for updates) •    NOx emissions reduced at least 63 percent over 2010 models •    Quieter operation •    High-pressure (30,000 psi/2,000 bar) Piezo-actuated fuel system for greater fuel efficiency, improved performance and reduced emissions •    Exhaust brake system that enables controlled vehicle slowdown on downhill grades without actuating the brakes •    Selective catalytic reduction after-treatment system using diesel exhaust fluid (DEF) injection to provide the best overall diesel characteristics and performance – with a range of about 5,000 miles (8,000 km) between DEF refills •    Combustion and after-treatment have been optimized to provide about 700 miles (1,125 km) between diesel particulate filter regenerations – a 75-percent improvement over the previous system and significant contributor to improved fuel efficiency, as the regeneration process requires additional fuel •    B20 biodiesel capability for an alternative fueling option •    Internal revisions that improve durability

With nearly 1.3 million Duramax 6.6L engines produced since 2000, they have proven exceptionally durable and dependable. The internal elements that helped build its reputation are enhanced for 2011, including: •    Main bearings’ profiles changed to enhance oil film thickness •    Oil pump flow increased for increased pressure at low speeds •    The turbocharger’s oil circuit is changed to provide increased pressure at the turbo and faster oil delivery •    The connecting rods’ pin ends are modified to provide increased piston support •    New, higher-strength piston design that eliminates bushings to provide lower reciprocating weight •    An EGR cooler bypass reduces high-mileage soot deposits in the cooler and EGR circuit

The enhanced Allison 1000 for 2011 is strengthened to handle the higher torque capability of the new 6.6L Duramax engine, while also helping improve fuel economy and provide seamless assistance with a new exhaust brake system. Greater efficiency is delivered through reduced “spin loss” – meaning, the transmission channels more of the engine’s power to the axles, allowing it to do more with less fuel.

The Allison 1000 also features driver shift control with tap up/tap down shifting and a patented elevated idle mode cab warm-up feature. Also, the tow/haul mode reduces shift cycling for better control and improved cooling when towing or hauling heavy loads. The six-speed configuration retains its two overdrive gears for optimal efficiency.

Performance with the Duramax/Allison combination is also improved over previous models, with preliminary testing showing 0-60 mph times of less than 9 seconds and quarter-mile times of less than 16 seconds in 2500HD models. That’s about 0.3-second and 0.5-second quicker, respectively, than previous models.

6. Strengthened Vortec 6.0L/Hydra-Matic 6L90 six-speed powertrain The venerable Vortec 6.0L gas V-8 with variable valve timing returns to the new heavy-duty trucks, along with a strengthened version of the Hydra-Matic 6L90 six-speed automatic transmission. This combination delivers excellent performance and efficiency, with a greater emphasis on low-rpm power.

A new camshaft profile in the Vortec 6.0L helps the engine produce more torque lower in the rpm band, for improved launch feel and a greater feeling of overall performance at higher altitudes and when towing a trailer.

The 6L90 is enhanced for greater strength, smoothness and quietness via: •    Adding four attachment bosses to the transfer case adapter (4WD models) for increased strength and smoother, quieter performance •    Increasing the cross section size of the transfer case adapter for greater strength •    Adding a new, stronger output shaft •    Adding a new heat shield and vent hose

7. Exhaust brake system A new feature on Duramax-equipped models is an exhaust brake system. This driver-selectable feature uses the turbine control of the variable geometry turbocharger and the compression of the engine to generate backpressure, slowing the vehicle without applying the brakes. It is a smart system integrated with the cruise control feature and varies the braking to account for the grade and vehicle load.

The exhaust brake system allows for virtually effortless driving and towing, with seamless and quiet operation. It also helps prolong brake life and prevents overheating the brakes on long, downhill grades.

8. Large brakes Brake feel and performance is greatly improved with the 2011 Silverado HD trucks. The standard four-wheel disc system is completely revamped to deliver smoother, more immediate and confident-feeling performance. Four-wheel, four-channel ABS is standard on all single-rear-wheel models and a three-channel system is standard on dual-rear-wheel models.

The front and rear rotors are larger in diameter – 14 inches (355 mm) – and width on all models to support their increased capacity, weight ratings and trailering ratings, while the calipers are stiffer and stronger. The hydroboost brake booster calibration is revised for reduced pedal effort and the travel of the pedal is also revised for a more comfortable, confident feel.

Larger wheel hub and bearing assemblies complement the new brake system and the rear rotors attach to the wheel hubs for easier servicing.

9. Refined and capable ride, handling and steering Longer wheelbases – ranging from 133.6 inches (3,395 mm) to 167.7 inches (4,259 mm) – and wider front/rear tracks enhance the ride and handling characteristics of the Silverado 2500HD and 3500HD, giving them a greater feeling of smoothness and control.

The longer wheelbases and wider tracks are complemented by the new, stiffer frames, new jounce bumpers, shock mounts and hydraulic body mounts to provide a solid, smooth and isolated driving experience. New shocks were specially valved to support the new trucks’ weight ratings, while balancing excellent ride characteristics.

Also enhancing the driving experience is a revised steering system designed to support the trucks’ greater front gross axle weight rating. It includes a new, larger steering gear, power steering pumps and linkages. The pumps (different parts for gas and diesel models) deliver greater pressure for reduced steering effort in low-speed and parking maneuvers; they are also quieter. On some models, the new linkages feature a compliant joint added at the pitman attachment to enhance handling.

10. Comprehensive safety and functional technology The 2011 Silverado 2500HD and 3500HD models have a comprehensive roster of safety features and functional technologies that include: •    StabiliTrak electronic stability control system on all single-rear-wheel models •    Larger, four-wheel disc brakes with standard four-wheel ABS •    A new high-strength steel tubular frame cross member that enhances safety and improves crashworthiness •    Seat pelvic/thorax and head curtain side air bags available on 2500HD •    Available rear backup camera •    Segment-exclusive OnStar 9.0 •    Trailer sway control system on all single-rear-wheel models •    Hill start assist (standard on single-rear-wheel models)

Trailer sway control system provides an added measure of confidence when towing a trailer. The system senses conditions of trailer sway and intervenes with braking and/or reduced engine power to bring the trailer under control and keep it on its intended path. The system will use electric trailer brakes when a trailer is plugged into the standard wiring harness of the truck and its performance requires no input from the driver.

The hill start assist system is automatically engaged when sensors detect the vehicle is on grade of about 5 percent or greater. It holds the brakes for about 1.5 seconds or until the gas pedal is pressed, preventing rollback – it is particularly effective when towing, giving the driver time to switch from the brake pedal to the gas pedal without rolling.

11. Lives bigger, drives better, works harder From the available remote starting feature to the unimpeded access offered by the 170-degree-opening rear access doors on extended cab models, the 2011 Silverado HD models live bigger, drive better and work harder. The interiors are refined, with improved quietness and attention to detail, but designed for working. Numerous storage compartments provide covered access for everything from work gloves to laptops.

Indeed, for many owners the Silverado HDs are mobile workspaces, offering mobile WiFi, USB connectivity, Bluetooth connectivity, XM Satellite Radio and a navigation system. Multiple charge points enable multiple electronic devices to operate simultaneously; and when equipped with the available navigation system, XM NavTraffic offers real-time updates of traffic conditions (in selected areas) that can help plan the most effective route to the job site.

Cold-weather customers will appreciate the Duramax 6.6L’s quick, reliable start-up, with a starting time on par with gas engines. Its glow plug cycle time is the segment’s best in all temperatures, taking no more than 3 seconds in temperatures as low as -20 F (-29 C). There’s also a cab heat-up feature that allows the engine to idle faster in low temperatures to warm up the interior faster.

And when you’re on the road, the Silverado HDs take you farther without stopping. A new, 36-gallon (136 L) fuel tank is standard on all models and, with the improved fuel efficiency of the powertrains, enables a cruising range of up about 680 miles (1,090 km) with the Duramax 6.6L. That’s the equivalent of a trip from Houston to Oklahoma City and back to Dallas on a single tank.

Finally, all 2011 Silverado 2500HD and 3500HD trucks work under the best warranty coverage in America – five-year/100,000-mile limited powertrain warranty, plus roadside assistance, courtesy transportation and other features that provide assurance that Chevrolet backs its trucks confidently.

SPECIFICATIONS

2011 SILVERADO 2500HD

Overview

Models: 2500HD reg. cab, long box, 2WD & 4WD
2500HD ext. cab, std. box, 2WD & 4WD
2500HD ext. cab, long box, 2WD & 4WD
2500HD crew cab, std. box, 2WD & 4WD
2500HD crew cab, long box, 2WD & 4WD
Body style / driveline: 2-3 passenger regular cab or 5-6 passenger extended cab,
5-6-passenger crew cab
3/4-ton; 2- and 4-wheel-drive heavy-duty pickup
Construction: body on frame
EPA vehicle class: full-size truck
Manufacturing location: Flint, Mich., Ft. Wayne, Ind.
Key competitors: Ford Super Duty Series pickup, Dodge Ram heavy-duty pickup

Engines

Vortec 6.0L V-8 (L96) Duramax 6.6L Turbo Diesel V-8 (LML)
Type: 6.0L V-8 6.6L V-8
Displacement (cu in / cc): 364 / 5967 403 / 6599
Bore & stroke (in / mm): 4.00 x 3.62 / 101.6 x 92 4.06 x 3.9 / 103 x 99
Block material: cast iron cast iron
Cylinder head material: cast aluminum cast aluminum
Valvetrain: overhead valve, two valves per cylinder, variable valve timing overhead valve, four valves per cylinder
Ignition system: coil-near-plug, platinum- tipped spark plugs, low-resistance spark plug wires compression, glow plug start aid
Fuel delivery: sequential fuel injection direct injection diesel with high pressure common rail
Compression ratio: 9.6:1 16.0:1
Horsepower (hp / kW @ rpm): TBD TBD
Torque (lb-ft / Nm @ rpm) : TBD TBD
Recommended fuel: regular unleaded diesel or B20
Maximum engine speed (rpm): 6000 3000
Emissions controls: three-way catalytic converter, positive crankcase ventilation, evaporative collection system cooled exhaust gas recirculation (EGR), EGR cooling-bypass system, diesel particulate filter system (DPF), selective catalyst reduction (SCR)

Transmissions

Hydra-Matic 6L90 Allison 1000
Type: six-speed automatic (with Vortec 6.0L) six-speed automatic (with Duramax 6.6L)
Gear ratios (:1):
First: 4.03 3.10
Second: 2.36 1.81
Third: 1.53 1.41
Fourth: 1.15 1.00
Fifth: 0.85 0.71
Sixth: 0.67 0.61
Reverse: 3.06 4.49
Final drive ratio: 3.73 or 4.10 3.73

Chassis / Suspension

Front: all models: std long- and short-arm independent front torsion bar suspension
Rear: semi-elliptic two-stage multi-leaf spring
Steering type: integral power-assisted recirculating ball
Steering ratio: 16.1
Steering wheel turns, lock-to-lock: 3.57

Turning Circle

Regular Cab Extended Cab Crew Cab
Turning circle, curb-to-curb (ft / m): std. box: 44.9 / 13.7

long box: N/A

std. box: 47.9 / 14.6

long box: 51.8 / 15.8

std. box: 50.5 / 15.4

long box: 54.8 / 16.7

Brakes

Type: power-assisted, Hydroboost brake-apply system, four-wheel disc, four-wheel ABS
Rotor diameter x thickness (in / mm): front: 13.97 x 1.57 / 355 x 40

rear: 14.17 x 1.34 / 360 x 34

Total swept area (sq in / sq cm): front: 277.7 / 1791

rear: 277.5 / 1790

Wheels / Tires

Wheel size and type: 17 x 7.5-in steel

17 x 7.5-in aluminum

18 x 8.0-in aluminum

20 x 8.5-in aluminum

Tire size: LT245/75R17 all-season

LT265/70R17 all-terrain

LT265/70R18 all-season

LT265/60R20 all-terrain

Dimensions

Exterior

Regular Cab

Long Box

Extended Cab Standard Box Extended Cab

Long Box

Crew Cab Standard Box Crew Cab Long Box
Wheelbase (in / mm): 133.6 / 3395.4 144.1 / 3662.4 158.1 / 4017.4 153.7 / 3904.4 167.7 / 4259.4
Overall length (in / mm): 225 / 5716 230.6 / 5858 249.5 / 6338 240.1 / 6100 259 / 6580
Overall width (in / mm): 80 / 2032 80 / 2032 80 / 2032 80 / 1989.5 80 / 2032
Overall height: (in / mm): 77.5 / 1970.5 77.8 / 1977.6 77.6 / 1971 78.3 / 1958 78 / 1983
Track – front

(in / mm):

68.8 / 1748 68.8 / 1748 68.8 / 1748 68.8 / 1748 68.8 / 1748
Track – rear

(in / mm):

67.3 / 1709 67.3 / 1709 67.3 / 1709 67.3 / 1709 67.3 / 1709
Min. ground clearance – 2WD

(in / mm):

front: 9.8 / 249

rear: 9.1 / 232

front: 9.8 / 249

rear: 8.5 / 217

front: 9.7 / 248

rear: 8.4 / 215

front: 9.7 / 248

rear: 8.3 / 213

front: 9.7 / 248

rear: 8.2 / 210

Min. ground clearance – 4WD

(in / mm):

front: 9.7 / 248

rear: 9.1 / 231

front: 9.7 / 248

rear: 8.5 / 216

front: 9.7 / 247

rear: 8.4 / 214

front: 9.7 / 247

rear: 8.2 / 209

front: 9.7 / 247

rear: 8.2 / 208

Step-in height (in / mm): 26.3 / 668 26.2 / 665 26 / 662 26 / 661 25.9 / 658

Weight ratings

GVWR (lb / kg) Curb Weight (lb / kg) Payload (lb / kg)
Reg cab, long box (2WD): 6.0L: 9300 / 4218

6.6L: 9900 / 4490

6.0L: 5596 / 2538

6.6L: 6475 / 2937

6.0L: 3704 / 1680

6.6L: 3425 / 1553

Reg cab, long box (4WD): 6.0L: 9500 / 4309

6.6L: 9900 / 4490

6.0L: 5920 / 2685

6.6L: 6775 / 3073

6.0L: 3580 / 1624

6.6L: 3126 / 1418

Ext cab, std. box (2WD): 6.0L: 9500 / 4309

6.6L: 10000 / 4536

6.0L: 5995 / 2719

6.6L: 6795 / 3082

6.0L: 3506 / 1590

6.6L: 3205 / 1453

Ext cab, std. box (4WD): 6.0L: 9500 / 4309

6.6L: 10000 / 4536

6.0L: 6278 / 2847

6.6L: 7105 / 3222

6.0L: 3222 / 1461

6.6L: 2895 / 1313

Ext cab, long box (2WD): 6.0L: 9500 / 4309

6.6L: 10000 / 4536

6.0L: 6096 / 2765

6.6L: 6927 / 3142

6.0L: 3404 / 1544

6.6L: 3073 / 1394

Ext cab, long box (4WD): 6.0L: 9500 / 4309

6.6L: 10000 / 4536

6.0L: 6371 / 2890

6.6L: 7235 / 3281

6.0L: 3130 / 1419

6.6L: 2765 / 1254

Crew cab, std. box (2WD): 6.0L: 9500 / 4309

6.6L: 10000 / 4536

6.0L: 6115 / 2773

6.6L: 6907 / 3133

6.0L: 3385 / 1535

6.6L: 3094 / 1403

Crew cab, std. box (4WD): 6.0L: 9500 / 4173

6.6L: 10000 / 4173

6.0L: 6377 / 2892

6.6L: 7208 / 3269

6.0L: 3123 / 1416

6.6L: 2792 / 1266

Crew cab, long box (2WD): 6.0L: 9500 / 4173

6.6L: 10000 / 4536

6.0L: 6208 / 2816

6.6L: 7058 / 3201

6.0L: 3292 / 1493

6.6L: 2942 / 1334

Crew cab, long box (4WD): 6.0L: 9900/ 4490

6.6L: 10000 / 4173

6.0L: 6525 / 2959

6.6L: 7387 / 3350

6.0L: 3375 / 1531

6.6L: 2613 / 1185

Cargo box

Standard Box Long Box
Cargo volume (cu ft / L): 60.7 / 1718 75.5 / 2138
Length at floor (in / mm): 78.8 / 2003 97.7 / 2483
Width at floor (in / mm): 62.4 / 1586 62.4 / 1586
Tailgate width (in / mm): 61.5 / 1564 61.5 / 1564
Width between wheel housings (in / mm): 50.6 / 1286 50.6 / 1286
Inside height (in / mm): 21 / 533 21 / 533

Interior

Regular Cab

Extended Cab

Crew Cab
Headroom (in / mm): 41.2 / 1048 front: 41.1 / 1044 front: 41.2 / 1048
rear: 39.4 / 1002 rear: 40.5 / 1030
Legroom (in / mm): 41.3 / 1049 front: 41.3 / 1049 front: 41.3 / 1049
rear: 34.3 / 872 rear: 39 / 991
Shoulder room (in / mm): 65.2 / 1657 front: 65.2 / 1657 front: 65.2 / 1657
rear: 65.3 / 1658 rear: 65.1 / 1655
Hip room (in / mm): 60.3 / 1532 front: 60.3 / 1532 front: 60.3 / 1532
rear: 61.8 / 1571 rear: 65.4 / 1663

Capacities

Regular Cab

Extended Cab

Crew Cab
Seating: 2 / 3 5 / 6 5 / 6
Fuel tank – 2WD and 4WD

(gal / L):

36 / 136 36 / 136 36 / 136
Engine oil (qt / L): 6.0L: 6.0 / 5.7

6.6L: 10 / 9.5

6.0L: 6.0 / 5.7

6.6L: 10 / 9.5

6.0L: 6.0 / 5.7

6.6L: 10 / 9.5

Cooling system (qt / L): 6.0L: 16.4 / 15.5

6.6L: 25.4 / 24

6.0L: 16.4 / 15.5

6.6L: 25.4 / 24

6.0L: 16.4 / 15.5

6.6L: 25.4 / 24

Trailering

Trailer towing maximum with ball hitch (lb / kg) Trailer towing maximum with fifth-wheel hitch (lb / kg)
Reg. cab, long box: 2WD w/ 6.0L (4.10 axle): 13000 / 5897

2WD w/ 6.6L (3.73 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 14700 / 6668

2WD w/ 6.6L (3.73 axle): 17800 / 8074

4WD w/ 6.0L (4.10 axle): 14400 / 6531

4WD w/ 6.6L (3.73 axle): 17500 / 7938

Ext. cab, std. box: 2WD w/ 6.0L (4.10 axle): 13000 / 5897

2WD w/ 6.6L (3.73 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 14300 / 6486

2WD w/ 6.6L (3.73 axle): 17500 / 7938

4WD w/ 6.0L (4.10 axle): 14000 / 6350

4WD w/ 6.6L (3.73 axle): 17200 / 7801

Ext. cab, long box: 2WD w/ 6.0L (4.10 axle): 13000 / 5897

2WD w/ 6.6L (3.73 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 14200 / 6441

2WD w/ 6.6L (3.73 axle): 17400 / 7892

4WD w/ 6.0L (4.10 axle): 13900 / 6304

4WD w/ 6.6L (3.73 axle): 16500 / 7484

Crew cab, std. box: 2WD w/ 6.0L (4.10 axle): 13000 / 5897

2WD w/ 6.6L (3.73 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 14200 / 6441

2WD w/ 6.6L (3.73 axle): 17400 / 7892

4WD w/ 6.0L (4.10 axle): 13900 / 6304

4WD w/ 6.6L (3.73 axle): 16700 / 7575

Crew cab, long box: 2WD w/ 6.0L (4.10 axle): 13000 / 5897

2WD w/ 6.6L (3.73 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 14100 / 6395

2WD w/ 6.6L (3.73 axle): 17200 / 7801

4WD w/ 6.0L (4.10 axle): 13800 / 6259

4WD w/ 6.6L (3.73 axle): 15600 / 7076

*SAE certified.

Note: Information shown is current at time of publication.

SPECIFICATIONS

2011 SILVERADO 3500HD

Overview

Models: 3500HD reg. cab, long box, 2WD & 4WD
3500HD ext. cab, long box, 2WD & 4WD
3500HD crew cab, long box, 2WD & 4WD
3500HD crew cab, std. box, 2WD & 4WD
Body style / driveline: 2-3 passenger regular cab or 5-6 passenger extended cab,
5-6-passenger crew cab
1-ton; 2- and 4-wheel-drive heavy-duty pickup
Construction: body on frame
EPA vehicle class: full-size truck
Manufacturing location: Flint, Mich., Ft. Wayne, Ind.
Key competitors: Ford Super Duty Series pickup, Dodge Ram heavy-duty pickup

Engines

Vortec 6.0L V-8 (L96) Duramax 6.6L Turbo Diesel V-8 (LML)
Type: 6.0L V-8 6.6L V-8
Displacement (cu in / cc): 364 / 5967 403 / 6599
Bore & stroke (in / mm): 4.00 x 3.62 / 101.6 x 92 4.06 x 3.9 / 103 x 99
Block material: cast iron cast iron
Cylinder head material: cast aluminum cast aluminum
Valvetrain: overhead valve, two valves per cylinder, variable valve timing overhead valve, four valves per cylinder
Ignition system: coil-near-plug, platinum- tipped spark plugs, low-resistance spark plug wires compression, glow plug start aid
Fuel delivery: sequential fuel injection direct injection diesel with high pressure common rail
Compression ratio: 9.6:1 16.0:1
Horsepower (hp / kW @ rpm): TBD TBD
Torque (lb-ft / Nm @ rpm) : TBD TBD
Recommended fuel: regular unleaded diesel or B20
Maximum engine speed (rpm): 6000 3000
Emissions controls: three-way catalytic converter, positive crankcase ventilation, evaporative collection system cooled exhaust gas recirculation (EGR), EGR cooling-bypass system, diesel particulate filter system (DPF), selective catalyst reduction (SCR)

Transmissions

Hydra-Matic 6L90 Allison 1000
Type: 6-speed automatic (with Vortec 6.0L) 6-speed automatic (with Duramax 6.6L)
Gear ratios (:1):
First: 4.03 3.10
Second: 2.36 1.81
Third: 1.53 1.41
Fourth: 1.15 1.00
Fifth: 0.85 0.71
Sixth: 0.67 0.61
Reverse: 3.06 4.49
Final drive ratio: 3.73 or 4.10 3.73

Chassis / Suspension

Front: all models: std long- and short-arm independent front torsion bar suspension
Rear: semi-elliptic three-stage multi-leaf spring
Steering type: integral power-assisted recirculating ball
Steering ratio: 16:1
Steering wheel turns, lock-to-lock: 3.57

Turning Circle

Regular Cab Long Box Extended Cab Long Box Crew Cab Long Box Crew Cab Std. Box
Turning circle, curb-to-curb (ft / m): SRW: 44.9 / 13.7

DRW: 45.6 / 13.9

SRW: 51.8 / 15.8

DRW: 52.8 / 16.1

SRW: 54.8 / 16.7

DRW: 55.4 / 16.9

SRW: 50.5 / 15.4

DRW: N/A

Brakes

Type: power-assisted, Hydroboost brake-apply system, four-wheel disc, four-wheel ABS
Rotor diameter x thickness (in / mm): front: 13.97 x 1.57 / 355 x 40

rear: 13.97 x 1.57 / 355 x 40

Total swept area (sq in / sq cm): front: 278 / 1793

rear: 278 / 1793

Wheels / Tires

Wheel size and type
Single rear wheels: 18 x 8.0-in steel

18 x 8.0-in aluminum

Dual rear wheels: 17 x 6.5-in steel
Tire size
Single rear wheels: LT265/70R18 all season or all terrain
Dual rear wheels: LT235/80R17 all season or all terrain

Dimensions

Exterior

Regular Cab

Long Box

Extended Cab

Long Box

Crew Cab

Std. Box

Crew Cab

Long Box

Wheelbase (in / mm): 133.6 / 3395.4 158.1 / 4017.4 153.7 / 3904.4 167.7 / 4259.4
Overall length (in / mm): 225 / 5716 249.5 / 6338 240.1 / 6100 259 / 6580
Overall width (in / mm): 95.9 / 2436 95.9 / 2436 80 / 2032 95.9 / 2436
Overall height (in / mm): 2WD: 77.3 / 1965

4WD: 77.2 / 1962

2WD: 77.4 / 1966

4WD: 77.3 / 1963

2WD: 77.4 / 1966

4WD: 77.4 / 1966

2WD: 77.8 / 1977

4WD: 77.8 / 1977

Track – front w/single rear wheels (in / mm): 68.8 / 1748 68.8 / 1748 68.8 / 1748 68.8 / 1748
Track – rear w/single rear wheels (in / mm): 67.3 / 1709 67.3 / 1709 67.3 / 1709 67.3 / 1709
Track – rear w/dual rear wheels (in / mm): 75 / 1906 75 / 1906 75 / 1906 75 / 1906
Minimum ground clearance – 2WD (in / mm): front: 9.9 / 252.2

rear: 8.8 / 224

front: 9.6 / 246

rear: 8.6 / 219.5

front: 10 / 255.4

rear: 8.4 / 213.3

front: 9.6 / 245

rear: 8.5 / 215

Minimum ground clearance – 4WD (in / mm): front: 9.9 / 252

rear: 8.6 / 218

front: 9.6 / 244.5

rear: 8.4 / 214.5

front: 9.9 / 253.5

rear: 8.4 / 214.4

front: 9.6 / 244

rear: 8.5 / 215

Step-in height (in / mm): 26 / 660 25.8 / 655 25.2 / 642 25.4 / 647

Weight ratings

GVWR (lb / kg) Curb Weight (lb / kg) Payload (lb / kg)
Reg cab, long box (2WD) with single rear wheels: 6.0L: 10400 / 4717

6.6L: N/A

6.0L: 5808 / 2634

6.6L: N/A

6.0L: 4592 / 2083

6.6L: N/A

Reg cab, long box (2WD) with dual rear wheels: 6.0L: 12500 / 5670

6.6L: N/A

6.0L: 6165 / 2796

6.6L: N/A

6.0L: 6335 / 2873

6.6L: N/A

Reg cab, long box (4WD) with single rear wheels: 6.0L: 10700 / 4853

6.6L: 11400 / 5171

6.0L: 6134 / 2782

6.6L: 6919 / 3138

6.0L: 4566 / 2071

6.6L: 4481 / 2032

Reg cab, long box (4WD) with dual rear wheels: 6.0L: 12800 / 5806

6.6L: 13000 / 5897

6.0L: 6492 / 2944

6.6L: 7277 / 3301

6.0L: 6308 / 2861

6.6L: 5724 / 2596

Ext cab, long box (2WD) with single rear wheels: 6.0L: 10700 / 4853

6.6L: 11200 / 5080

6.0L: 6303 / 2859

6.6L: 6991 / 3171

6.0L: 4397 / 1994

6.6L: 4209 / 1909

Ext cab, long box (2WD) with dual rear wheels: 6.0L: 13000 / 5897

6.6L: 13000 / 5897

6.0L: 6668 / 3024

6.6L: 7460 / 3384

6.0L: 6332 / 2872

6.6L: 5540 / 2513

Ext cab, long box (4WD) with single rear wheels: 6.0L: 11000 / 4989

6.6L: 11600 / 5261

6.0L: 6580 / 2984

6.6L: 7377 / 3346

6.0L: 4420 / 2005

6.6L: 4223 / 1915

Ext cab, long box (4WD) with dual rear wheels: 6.0L: 13000 / 5897

6.6L: 13000 / 5897

6.0L: 6945 / 3150

6.6L: 7742 / 3511

6.0L: 6055 / 2746

6.6L: 5258 / 2385

Crew cab, long box (2WD) with single rear wheels: 6.0L: 10700 / 4853

6.6L: 11400 / 5171

6.0L: 6414 / 2909

6.6L: 6984 / 3168

6.0L: 4286 / 1944

6.6L: 4416 / 2003

Crew cab, long box (2WD) with dual rear wheels: 6.0L: 13000 / 5897

6.6L: 13000 / 5897

6.0L: 6777 / 3074

6.6L: 7544 / 3422

6.0L: 6223 / 2822

6.6L: 5456 / 2475

Crew cab, long box (4WD) with single rear wheels: 6.0L: 11000 / 4989

6.6L: 11600 / 5261

6.0L: 6732 / 3053

6.6L: 7516 / 3409

6.0L: 4268 / 1936

6.6L: 4085 / 1853

Crew cab, long box (4WD) with dual rear wheels: 6.0L: 13000 / 5897

6.6L: 13000 / 5897

6.0L: 7095 / 3218

6.6L: 7878 / 3573

6.0L: 5905 / 2678

6.6L: 5122 / 2323

Crew cab, std. box (2WD) with single rear wheels: 6.0L: 10500 / 4762

6.6L: 11100 / 5034

6.0L: 6300 / 2857

6.6L: 7063 / 3203

6.0L: 4200 / 1905

6.6L: 4038 / 1831

Crew cab, std. box (4WD) with single rear wheels: 6.0L: 10800 / 4899

6.6L: 11500 / 5216

6.0L: 6573 / 2981

6.6L: 7335 / 3327

6.0L: 4227 / 1917

6.6L: 4165 / 1889

Cargo box

Standard Box Long Box
Cargo volume (cu ft / L): 60.7 / 1718 75.5 / 2138
Length at floor (in / mm): 78.8 / 2003 97.7 / 2483
Width at floor (in / mm): 62.4 / 1586 62.4 / 1586
Tailgate width (in / mm): 61.5 / 1564 61.5 / 1564
Width between wheel housings (in / mm): 50.6 / 1286 50.6 / 1286
Inside height (in / mm): 21 / 533 21 / 533

Interior

Regular Cab

Extended Cab

Crew Cab
Headroom (in / mm): 41.2 / 1048 front: 41.1 / 1044 front: 41.2 / 1048
rear: 39.4 / 1002 rear: 40.5 / 1030
Legroom (in / mm): 41.3 / 1049 front: 41.3 / 1049 front: 41.3 / 1049
rear: 34.3 / 872 rear: 39 / 991
Shoulder room (in / mm): 65.2 / 1657 front: 65.2 / 1657 front: 65.2 / 1657
rear: 65.3 / 1658 rear: 65.1 / 1655
Hip room (in / mm): 60.3 / 1532 front: 60.3 / 1532 front: 60.3 / 1532
rear: 61.8 / 1571 rear: 65.4 / 1663

Capacities

Regular Cab

Extended Cab

Crew Cab
Seating: 2 / 3 5 / 6 5 / 6
Fuel tank (gal / L): 36 / 136 36 / 136 36 / 136
Engine oil (qt / L): 6.0L: 6.0 / 5.7

6.6L: 10 / 9.5

6.0L: 6.0 / 5.7

6.6L: 10 / 9.5

6.0L: 6.0 / 5.7

6.6L: 10 / 9.5

Cooling system (qt / L): 6.0L: 16.4 / 15.5

6.6L: 25.4 / 24

6.0L: 16.4 / 15.5

6.6L: 25.4 / 24

6.0L: 16.4 / 15.5

6.6L: 25.4 / 24

Trailering

Trailer towing maximum with ball hitch (lb / kg) Trailer towing maximum with fifth-wheel hitch (lb / kg)
Reg. cab, long box with single rear wheels: 2WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 14500 / 6577

4WD w/ 6.0L (4.10 axle): 14200 / 6441

4WD w/ 6.6L (3.73 axle): 17400 / 7892

Reg. cab, long box with dual rear wheels: 2WD w/ 6.0L (4.10 axle): 14100 / 6395

4WD w/ 6.0L (4.10 axle): 13800 / 6259

4WD w/ 6.6L (3.73 axle): 16000 / 7257

2WD w/ 6.0L (4.10 axle): 14100 / 6395

4WD w/ 6.0L (4.10 axle): 13800 / 6259

4WD w/ 6.6L (3.73 axle): 20000 / 9072

Ext. cab, long box with single rear wheels: 2WD w/ 6.0L (4.10 axle): 13000 / 5897

2WD w/ 6.6L (3.73 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 14000 / 6350

2WD w/ 6.6L (3.73 axle): 17300 / 7847

4WD w/ 6.0L (4.10 axle): 13700 / 6214

4WD w/ 6.6L (3.73 axle): 16900 / 7665

Ext. cab, long box with dual rear wheels: 2WD w/ 6.0L (4.10 axle): 13600 / 6169

2WD w/ 6.6L (3.73 axle): 16000 / 7257

4WD w/ 6.0L (3.73 axle): 13400 / 6078

4WD w/ 6.6L (3.73 axle): 16000 / 7257

2WD w/ 6.0L (4.10 axle): 13600 / 6169

2WD w/ 6.6L (3.73 axle): 19800 / 8981

4WD w/ 6.0L (3.73 axle): 13400 / 6078

4WD w/ 6.6L (3.73 axle): 19600 / 8909

Crew cab, long box with single rear wheels: 2WD w/ 6.0L (4.10 axle): 13000 / 5897

2WD w/ 6.6L (3.73 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 13900 / 6318

2WD w/ 6.6L (3.73 axle): 17300 / 7863

4WD w/ 6.0L (4.10 axle): 13600 / 6181

4WD w/ 6.6L (3.73 axle): 16800 / 7636

Crew cab, long box with dual rear wheels: 2WD w/ 6.0L (4.10 axle): 13500 / 6123

2WD w/ 6.6L (3.73 axle): 16000 / 7257

4WD w/ 6.0L (4.10 axle): 13200 / 5987

4WD w/ 6.6L (3.73 axle): 16000 / 7257

2WD w/ 6.0L (4.10 axle): 13500 / 6136

2WD w/ 6.6L (3.73 axle): 19800 / 9000

4WD w/ 6.0L (4.10 axle): 13200 / 6000

4WD w/ 6.6L (3.73 axle): 19400 / 8818

Crew cab, std. cab with single rear wheels 2WD w/ 6.0L (4.10 axle): 13000 / 5897

2WD w/ 6.6L (3.73 axle): 13000 / 5897

4WD w/ 6.0L (4.10 axle): 13000 / 5897

4WD w/ 6.6L (3.73 axle): 13000 / 5897

2WD w/ 6.0L (4.10 axle): 14000 / 6363

2WD w/ 6.6L (3.73 axle): 17200 / 7818

4WD w/ 6.0L (4.10 axle): 13700 / 6214

4WD w/ 6.6L (3.73 axle): 17000 / 7727

  • reg

    Has GM fixed the hydraulic braking problem that locks the steering up during backing operations? There service bulletins did not have a corrective action for several models above 1999.

  • DAVID

    Until GM put solid axles under their front ends they will never compete with FORD & DODGE those trucks are REAL HD’s

  • Rich

    Did they fix the Trans &Brake booster lines that leak, even after replaced with the same type?

  • BPH

    Solid front axles are great if you are working in a construction environment every day, but some of us use these HD trucks for RV’ing and driving for pleasure and it’s no pleasure driving a solid front axle truck.

  • GT

    Just turned 437,000 miles on my 2002 Duramax. When it finally stops running, I will buy another one. Keep up the good engineering GM.

  • Wayne

    Totally agree with BHP. If I beat on my truck daily and used it off road a lot then I’d want a solid front. But after using a Chevy 2500 going on some pretty wild stuff traveling to mountain tops to work on Microwave towers I still think the IFS is a good system. My personal 2005 Chevy is a 3500 dually that I pull a 37′ 5th wheel or 48′ gooseneck with. I like the ride, power, reliability, interior and exterior design and the way it handles. For me it’s close enough to be my “Cadillac”. The new 2010 Dodge design looks pretty cool so I might consider that later on down the road. I know a lot of Ford fans don’t like the way our car/truck looks or the IFS but for us it does an admirable job. Maybe the new 6.7 FORD designed engine will offer better fuel mileage than the 6.4 but with the DPF then all of them are down on mpg. My biggest beef with Ford is also the same as yours with Chevy/GMC. I plain don’t like the way the interior or exterior looks on the new models. I almost bought a 2005 F-350 until I learned more about the 6.0L. The looks of that year were spot on and I was looking forward to buying one. Test drove a low mileage used 2003 Dodge Laramie and the death wobble at 80 mph took care of that one. So during that time frame, the GM’s looked and rode the best in my book. It has very low mileage so no reason to sell just to have a newer look. I’d probably buy a 2011 GMC if that were the case or maybe a Dodge dually with a 6 sp manual.

  • Mike

    Look into the “DEF” before you get too excited about their “new” truck. This is liquid urea you get to put in your second tank when fueling up. It freezes at 15 degrees F. I just can’t believe that we, along with Congress are going to continually follow the “stupid” rules of the EPA–I mean really, we are going to add the cost of burning liquid fertilizer to the cost of owning a diesel pickup?? I have an ’08 Chevy and it will be my last. Good luck staying out of bankruptcy “BIG 3″–EPA will have you all there soon with this and the new required gas mileage ratings!!

  • Steve

    Just traveled over 650 miles on my 2003 duramax, form Klamath Falls OR to Portland OR around town 2 days and returned home getting 22.1 miles per gallon. Hard to give up a great running and fuel stingy diesel for a new one. Has anyone seen the fuel economy report on the new 2011 duramax?

  • Colum Wood

    They haven’t release the fuel economy numbers yet, but Chevy claims an 11 percent improvement.

  • JP

    Loved your write-up, love my 2005 Silverado D/A.
    Don’t love the following items not referenced in your article:
    Steering clunk, front wheel bearing issue, speedo sticking, burning up hvac ballast resistor & rear drive shaft clunk. Have these (since 1999) issues been fixed yet? With the exception of the speedo (still covered under warranty after 36k miles – thank you gm) they were not as of my 2005 year and were all pricey items to repair. When the prices come down on the 2011 and newer models and my 05 hits 299k miles, I will be buying a new Silverado (115k miles right now). I am not complaining – I just would like more feedback on old problems fixed instead of about a new shiny bumper with bigger slot/hole in it (like the 36 gallon vs wimpy 27 gallon mine has).

  • JP

    Oh, and for what it is worth at a 1800 rpm typical driving (I don’t drive much over 67 mph) with the 2005 Silverado (5 speed – wish I had held out for the 6 speed) LLY engine using the cruise control as much as possible, I typically get 20.6 mpg commute back and forth to work mileage.

  • WSN

    Hey! I did hold out for the six speed, at approx. 1500 rpm say 57 mph? dry pavement (not wet/rain) with cruise on, I’ve gotten 22.8 mpg. consistently (of course in Alaska many of us have 95-150 gallon external fuel tanks we’re hauling around too, mines just over 100 besides 27 gallon truck tank) and on a bit flatter terrain 28.1 mpg. As with the tranny coolant lines…. I’m in Alaska… as soon as warranty ran out… I replaced with our typical ‘Arctic Hose’ lines almost three years ago…(winters up here can be -30-55 F below zero average) Haven’t had a bit of problem since. I Love my Turbo the best… when starting out in our quiet environment spring/summer/fall Sounds like a small jet airplane engine taxi’ing. I Love that quiet high pitched squeal. I was looking at a new ’10 but guess I’ll hang out and ‘order’ a new ’11. ( I just really like my 2006 body style better.) We pull fifth wheel trailers up here for work/job sites. With semi transport trucks pulling double trailers with weights grossing 160,000 … No ones ‘volunteering’ to get in their way on most of our two-lane roads (all day or all night).

  • clayton

    i have a duramax 2010 and a 2000 f250 and the duramax motor seized up after 10 ton for 200 miles the truck only has 15346 mies on it and the stroker hauled it the load from point a to point b which is 450 miles i think that that i will stick with a stroker. just to make it simple they are both stock

  • Matt in Albuquerque

    Just bought a 2011 chevy HD 6.0 2500 3.73 diff. in November when I got tired of taking my 2500 dodge diesel in for emission problems. Has alot of new readouts that I,m not sure about. Can anybody tell me what the average temp. of the tranny should be? It’s not the allison because of the 6.0. Also I was wandering if it comes standard with a tranny cooler or if I need to put one on before I start towing.

    Thanks, Matt

  • blengas

    Great pickup, i want one of these :D

  • Greg Williams

    I have owned GM trucks for 40 years +. ’59, ’79, ’85, ’89, ’92, ’95 diesel, 2001 diesel, an now I am a proud owner of the most powerful truck I have ever owned, a 2011 Chev. Duramax. While cruising at 60 mph on a local express way, 1500 rpm, in 6th gear. I started up a 10% grade, 3 1/2 mile run. I had 1,000 lbs. in the bed for a total of over 8.000 lbs. The RPM never changed; it held 60 mph and never faltered or slowed down. What a Truck!!!!!

  • Chris

    I am putting a dump bed on a 2011 duramax with the allison trans.it has the pto control on the dash.Will the pto make a rattling noise even when its disengaged?

  • Tim

    Bought a 2011 duramax crew cab and can’t keep it on the road. Pulls one way or the other depending what side of the road you are on. GM and dealers told me that is the way it is designed. They have no better explanation than that and won’t do anything about it. Very dissatisfied. My 2002 HD with 136000 miles is straght down the road. Rather drive that. 2011 has been aligned 5 times, tires rotated, pressure checked with no improvement.c’mon GM!

  • jp chevey for ever

    6.0 turbo allison tran 3500 4×4 come on GM get with it fords are kicken your gas butts

    Gm

  • Frank

    Wow nothing But DEF fluid problems !!!!!!! i have a 2011 2500hd it has been at the dealers 4 times in 8000 miles with emission problems and they don’t seem to know how to get it fixed. Just like our government motors push it out on our civilians and let them figure it out. i love my truck but i hate the manufacturer . I’m about ready to remove all this shit and send it to the EPA and tell them what they can do with it. i don’t have a problem with it being on there but get it right before pushing it on the customers. And include it in the 1000,000 mile warranty. not 50,000.