GMC Sierra 3500HD IV (GMTK2XX) Double Cab Long Box 6.6 Duramax TD V8 (445 Hp) DRW Automatic


Overall Rating

8.1 / 10
Safety N/A / 5
Not Rated
Engine 3.8 / 5
Value 3.9 / 5
Performance 4.5 / 5
Comfort 3.8 / 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)

IV (GMTK2XX) Double Cab Long Box Overview:

GMC Sierra 3500HD (IV (GMTK2XX) Double Cab Long Box). With 1234 Nm of torque, it offers ample pulling power. At around 3446 kg, it’s on the heavier side. Rear‑wheel drive offers dynamic handling and sporty feedback. 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 (445 Hp) DRW Automatic Verdict:

Rating 5 stars

Performance Verdict

Delivers immense power and torque for dual-rear-wheel applications, making it a powerhouse for the heaviest towing and hauling tasks.

Fuel Economy

Provides excellent fuel efficiency for a heavy-duty truck of this capability, offering a strong balance of power and operational cost for heavy users.

Best Use Case: Ultimate heavy-duty commercial hauling, large RV towing, and sustained demanding work where maximum torque and efficiency are paramount, without needing 4WD.

reddit Community Verdict

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

Allowed: 72% Neutral: 11% Issues: 17%
rating
4.1 / 5

Based on AI analysis of 18 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
I have a late '24 Denali, with 18K miles on it... mostly highway miles across the PNW, and have never had a single issue with it. (KNOCK ON WOOD!!!)
👍 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.


Pros and Cons:

Pros:

  • • Exceptional towing and hauling capabilities, especially with Duramax diesel.
  • • Robust and reliable engine options for demanding work.
  • • Comfortable and well-appointed interior for a heavy-duty truck.
  • • Strong resale value for Duramax models.
  • • Available in various configurations (SRW/DRW, 2WD/4WD) to suit diverse needs.

Cons:

  • • Gasoline V8 models have poor fuel economy, particularly under load.
  • • Large size can make maneuvering in urban environments challenging.
  • • Ride quality can be stiff when unladen, typical for heavy-duty trucks.
  • • High purchase price and maintenance costs, especially for diesel variants.
  • • Limited advanced safety features compared to modern passenger vehicles.

Specifications:

Specifications are compared to those of the previous generation(IV (GMTK2XX) Crew Cab Long Box: 2015 - 2019).

General:
Brand:GMC
Model:Sierra 3500HD
Generation:IV (GMTK2XX) Double Cab Long Box
Modification (Engine):6.6 Duramax TD V8 (445 Hp) DRW Automatic
Start of production:2017
End of production:2019
Powertrain Architecture:Internal Combustion engine
Body type:Pick-up
Seats:5
Doors:4
Engine:
Engine systems:Particulate filter
Power:445 Hp @ 2800 rpm. Same horsepower
Power per litre:67.4 Hp/l [242mm less]
Torque:1234 Nm @ 1600 rpm.
Engine Model/Code:Duramax L5P More details about the engine Duramax L5P
Engine displacement:6604
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:29.7 l
Engine layout:Front, Longitudinal
Cylinder Bore:103 mm mm
Piston Stroke:99 mm mm
Compression ratio:16:1
Performance:
Fuel Type:Diesel
Weight-to-power ratio:7.7 kg/Hp, 129.1 Hp/tonne
Weight-to-torque ratio:2.8 kg/Nm, 358.1 Nm/tonne
Space:
Kerb Weight:3446
Max. weight:5908
Max load:2462
Trunk (boot) space - maximum:2162 l
Permitted trailer load with brakes (12%):9072 kg
Fuel tank capacity:136 l
Size:
Length:6321 mm mm [242mm less]
Width:2438 mm mm [Same width.]
Height:1972 mm mm [3mm less]
Wheelbase:4017 mm mm [242mm less]
Width including mirrors:2438 mm
Front track:1748 mm
Rear (Back) track:1906 mm
Minimum turning circle (turning diameter):16.1 m [above average]
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears6
Transmission typeAutomatic
Gearbox typeAllison
Front brakesVentilated discs, 355x40 mm [Best for performance and cooling.]
Rear brakesVentilated discs, 355x40 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
Wheel rims size7.5J x 17; 8J x 18
Front suspensionCoil spring, Double wishbone, Transverse stabilizer
Rear suspensionRigid axle suspension, Leaf spring

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