GMC Sierra 3500HD III (GMT900, facelift 2011) Crew Cab Standard Box 6.6 Duramax TD V8 (397 Hp) 4WD SRW Automatic


Overall Rating

7.6 / 10
Safety N/A / 5
Not Rated
Engine 3.8 / 5
Value 3.8 / 5
Performance 4.2 / 5
Comfort 3.0 / 5
People\'s Opinion 4.1 / 5

GMC Sierra 3500HD:

The Chevrolet Silverado is a range of trucks manufactured by General Motors under the Chevrolet brand. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The fourth generation of the model line was introduced for the 2019 model year.
The Chevrolet Silverado shares mechanical commonality with the identically related GMC Sierra; GMC ended the use of the C/K nomenclature a model generation prior to Chevrolet. In Mexico, high-trim level versions of the Silverado use the Chevrolet Cheyenne name. Competing against the Ford F-Series, Ram pickup, Toyota Tundra, and Nissan Titan, the Silverado is among the best-selling vehicles in the United States, having sold over 12 million trucks since its introduction in 1998 as a 1999 model year....(Read more on Wikipedia)

III (GMT900, facelift 2011) Crew Cab Standard Box Overview:

GMC Sierra 3500HD (III (GMT900, facelift 2011) Crew Cab Standard Box). With 1037 Nm of torque, it offers ample pulling power. At around 3345 kg, it’s on the heavier side. All‑wheel drive provides excellent grip, ideal for off‑road use. A vehicle with an open cargo bed at the back, suitable for transporting goods. Seating for 5 makes it ideal for daily use.

6.6 Duramax TD V8 (397 Hp) 4WD SRW Automatic Verdict:

Rating 5 stars

Performance Verdict

Exceptional torque and horsepower make this Duramax diesel the top choice for extreme towing and heavy hauling, providing effortless capability.

Fuel Economy

While better than the gasoline V8 under heavy load, fuel efficiency is relative for a heavy-duty diesel, but it offers superior range and economy for its class.

Best Use Case: Max-capacity towing, commercial transport, long-haul heavy-duty applications, and demanding off-road or challenging terrain work.

reddit Community Verdict

This rating is based on comments found on Reddit, scanned using artificial intelligence, and may not accurately reflect reality.

Allowed: 71% Neutral: 12% Issues: 18%
rating
4.1 / 5

Based on AI analysis of 17 discussions

Read What Owners Say
👍 POSITIVE
Had one in my last 3 trucks and was reason number 1 I decided to stick with Chevy/GMC. No trouble at all in the last 17 years.
👍 POSITIVE
Had a 2017 and the tranny sucked, but the engine was great. My 2024 has the same engine and a better tranny. Love it.
👍 POSITIVE
https://preview.redd.it/y59zs15lcv2g1.jpeg?width=6048&format=pjpg&auto=webp&s=7f938b4fc9c058ede8cbb8e94d0d2ce477abee25 no issues at all.
👍 POSITIVE
yes, along with the millions of other happy drivers with 5.3s. the few with lemons are loud on reddit but vast majority will serve you well. good luck
👍 POSITIVE
This baby has over 307k miles. I did afm delete at 264k, but most won't hit those miles. Drive it like you stole it and keep up on maintenance and you'll be fine. https://preview.redd.it/yel68agkqu2g1.jpeg?width=1438&format=pjpg&auto=webp&s=6778a93e3baaf0eedf8553f2447be97b870b407c
👍 POSITIVE
I had an 08, 15 and now a 24. Great truck otherwise I wouldn’t be on my 3rd. Thankfully no issues, the negative comments get a lot of attention, great truck - enough said.
👎 NEGATIVE
I had 19 at4 5.3 for 145k. Did have lifters replaced under warranty at 60k then 145 needed news trans. Got the diesel instead of fixing trans. But other than that it was great no towing. All highway mainly in 6 years
👎 NEGATIVE
I had lifters in both sides done at 7k miles and am still having a ticking / collapsed lifter sound. Currently going through a lemon law case
👍 POSITIVE
5.3s are solid. I just got the sierra with the 3.0L diesel for $61k, zero miles (and I believe the 3.0l should add on a few grand?). $56k with almost 10k miles seems a little high. Maybe try to weasel a few more grand. Otherwise sweet truck.
👍 POSITIVE
Have a 23 with 40k on it no issues i change the oil every 5k


Pros and Cons:

Pros:

  • • Exceptional towing and hauling capabilities
  • • Powerful and reliable engine options (especially Duramax)
  • • Spacious and functional Crew Cab interior
  • • Durable chassis and suspension for heavy loads
  • • Strong resale value for well-maintained models

Cons:

  • • Poor fuel economy, particularly with the gasoline V8
  • • Large size can make maneuvering difficult in urban areas
  • • Ride quality can be stiff when unladen
  • • Interior materials are functional but not luxurious
  • • High purchase price for top trims and diesel option

Specifications:

Specifications are compared to those of the previous generation(III (GMT900) Regular Cab Long Box: 2007 - 2010).

General:
Brand:GMC
Model:Sierra 3500HD
Generation:III (GMT900, facelift 2011) Crew Cab Standard Box
Modification (Engine):6.6 Duramax TD V8 (397 Hp) 4WD SRW Automatic
Start of production:2011
End of production:2013
Powertrain Architecture:Internal Combustion engine
Body type:Pick-up
Seats:5
Doors:4
Engine:
Engine systems:Particulate filter
Power:397 Hp @ 3000 rpm. Same horsepower
Power per litre:60.2 Hp/l [387mm more]
Torque:1037 Nm @ 1600 rpm.
Engine Model/Code:Duramax LML More details about the engine Duramax LML
Engine displacement:6599
Number of cylinders:8
Engine configuration:V-engine
Number of valves per cylinder:4
Fuel injection system:Diesel Commonrail
Engine aspiration:Turbocharger, Intercooler
Valvetrain:OHV
Engine oil capacity:9.5 l
Coolant:24 l
Engine layout:Front, Longitudinal
Cylinder Bore:103 mm mm
Piston Stroke:99 mm mm
Compression ratio:16:1
Maximum engine speed:3000 rpm.
Performance:
Fuel Type:Diesel
Weight-to-power ratio:8.4 kg/Hp, 118.7 Hp/tonne
Weight-to-torque ratio:3.2 kg/Nm, 310 Nm/tonne
Space:
Kerb Weight:3345
Max. weight:5216
Max load:1871
Trunk (boot) space - maximum:1718 l
Permitted trailer load with brakes (12%):5897 kg
Fuel tank capacity:136 l
Size:
Length:6101 mm mm [387mm more]
Width:2032 mm mm [404mm less]
Height:1966 mm mm [47mm more]
Wheelbase:3904 mm mm [526mm more]
Width including mirrors:2032 mm
Front track:1748 mm
Rear (Back) track:1709 mm
Ride height (ground clearance):213 mm
Minimum turning circle (turning diameter):15.4 m [above average]
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary.
Drive wheelAll wheel drive (4x4)
Number of gears6
Transmission typeAutomatic
Gearbox typeAllison
Front brakesVentilated discs, 355x40 mm [Best for performance and cooling.]
Rear brakesVentilated discs, 373x34 mm [Best for performance and cooling.]
Assisting systemsABS (Anti-lock braking system)
Steering typeCone worm with recirculation balls
Tires size235/80 R17; 265/70 R18
Front suspensionIndependent torsion bar, double wishbone
Rear suspensionRigid axle suspension, Leaf spring

Behind the wheel of the GMC Sierra 3500HD. How does it handle on the road?