2020 GMC Sierra 3500HD Double Cab

2020 MODEL
MSRP $41,195 - $48,995
  1. Home
  2. gmc
  3. Sierra 3500HD
  4. Double Cab

7.4

Overall Rating

INDIGO

FILTER BY YEAR

FILTER BY STYLE

2020 GMC Sierra 3500HD Double Cab Price, Review and Buying Guide

Updated on: July 23, 2020

Aaron Smith's image
Aaron Smith

Automotive Journalist


GMC Sierra is a sister to already capable Chevrolet Silverado and GMC are a little more approachable than a "little" higher nosed Chevrolet. Sierra 3500 HD just makes sense of being equipped with the same equipment but with a sweeter a tad less money. 3500HD is anyway a very capable platform and it has proved its mettle over time. 

With several cab styles to choose from, the Double Cab offers storage and rear seats, which improves practicality over a basic Regular Cab. The 2020 GMC Sierra 3500HD looks absolutely stunning, with a bright chrome grille at the front, the truck is instantly recognizable in a crowd of sheep.

See detailed review »

Pros

The legendary Duramax Diesel

Towing and Payload capacity

Ergonomic interiors

Smooth power delivery

Cons

No air suspensions

Rivals are more advanced

Low towing capacity for base model

What's New?

There are no major changes for 2020 GMC Sierra 3500HD Double Cab


See all »

Features

vehicle bio

base price

$41195

bodystyle

4dr Double Cab

passenger capacity

6

drivetrain

RWD

engine type

horsepower

401 hp @ 5200 rpm

torque

464 lbs.-ft. @ 4000 rpm

transmission

6-speed automatic

chassis

frame type

Ladder Frame

suspension front

Independent front short and long arm suspension

suspension rear

Rigid axle rear leaf suspension

brake rotors (f/r)

14/14

dimensions

wheelbase

162.5 in.

length

68.3 in.

width

81.9 in.

height

80.9 in.

curb weight

6689 lbs.

ground clearance

11.2 in.

capacity

passenger volume

37.9 cu ft.

cargo volume

83.5 cu ft.

towing capacity

21490 lbs.

payload capacity

4373 lbs.

performance

zero to 60 mph

7.5 sec.

standing ¼-mile

15.3 sec.

fuel economy

city/combined/highway

15/22/18 mpg

warranty

basic warranty

3 yr./ 36000 mi.

drivetrain warranty

5 yr./ 60000 mi.

corrosion warranty

6 yr. /100000 mi.

roadside assistance

5 yr. / 60000 mi.



Ratings

Features

9.0

Fuel Economy

6.0

Interior

8.0

Exterior

8.0

Safety

7.0

Final Verdict

8.2

7.4

OVERALL RATING

Similar Cars

2020 Ford F-350 SuperDuty SuperCab
2020 Ford F-350 SuperDuty SuperCab

MSRP: $37,560 - $54,700

8.2/10

Trims and Configurations

MSRP


2020 GMC Sierra 3500HD Double Cab Base

Base

power
401 hp @ 5200 rpm
fuel
Flex-fuel (unleaded/E85)
mpg
18 combined

$41,195 - $45,195


Style Prices MPG Engine Transmission Drivetrain Seats Colors
4dr Double Cab LB (6.6L 8cyl 6A) Starting at $41,195 MSRP (15/18/22) 401 hp @ 5200 rpm, 6.6 L, V-8, flex-fuel (unleaded/E85)
6-speed automatic rear wheel drive 6
4dr Double Cab LB DRW (6.6L 8cyl 6A) Starting at $42,395 MSRP (15/18/22) 401 hp @ 5200 rpm, 6.6 L, V-8, flex-fuel (unleaded/E85)
6-speed automatic rear wheel drive 6
4dr Double Cab LB 4WD (6.6L 8cyl 6A) Starting at $43,995 MSRP (15/18/22) 401 hp @ 5200 rpm, 6.6 L, V-8, flex-fuel (unleaded/E85)
6-speed automatic four wheel drive 6
4dr Double Cab LB 4WD DRW (6.6L 8cyl 6A) Starting at $45,195 MSRP (15/18/22) 401 hp @ 5200 rpm, 6.6 L, V-8, flex-fuel (unleaded/E85)
6-speed automatic four wheel drive 6

2020 GMC Sierra 3500HD Double Cab SLE

SLE

power
401 hp @ 5200 rpm
fuel
Flex-fuel (unleaded/E85)
mpg
18 combined

$44,995 - $48,995


Style Prices MPG Engine Transmission Drivetrain Seats Colors
SLE 4dr Double Cab LB (6.6L 8cyl 6A) Starting at $44,995 MSRP (15/18/22) 401 hp @ 5200 rpm, 6.6 L, V-8, flex-fuel (unleaded/E85)
6-speed automatic rear wheel drive 6
SLE 4dr Double Cab LB DRW (6.6L 8cyl 6A) Starting at $46,195 MSRP (15/18/22) 401 hp @ 5200 rpm, 6.6 L, V-8, flex-fuel (unleaded/E85)
6-speed automatic rear wheel drive 6
SLE 4dr Double Cab LB 4WD (6.6L 8cyl 6A) Starting at $47,795 MSRP (15/18/22) 401 hp @ 5200 rpm, 6.6 L, V-8, flex-fuel (unleaded/E85)
6-speed automatic four wheel drive 6
SLE 4dr Double Cab LB 4WD DRW (6.6L 8cyl 6A) Starting at $48,995 MSRP (15/18/22) 401 hp @ 5200 rpm, 6.6 L, V-8, flex-fuel (unleaded/E85)
6-Speed Automatic four wheel drive 6

Expert Review, Pricing Analysis and Buying Guide

7.4

Overall Rating


In the full-sized truck segment, the Sierra 3500HD has a stiff competition where big numbers like torque, payload and towing capacity, do the talking. With several cab styles to choose from, the Double Cab offers storage and rear seats, which improves practicality over a basic Regular Cab. The 2020 GMC Sierra 3500HD looks absolutely stunning, with a bright chrome grille at the front, the truck is instantly recognizable in a crowd of sheep.

2020 GMC Sierra 3500HD Double Cab Front View
2020 GMC Sierra 3500HD Double Cab Rear View

9.0/10
Features

6.0/10
Fuel Economy

8.0/10
Interior

8.0/10
Exterior

7.0/10
Safety

8.2/10
Final Verdict


2020 GMC Sierra 3500HD Double Cab Features

9.0/10

The 2020 GMC Sierra has 4 Trims namely Sierra, SLE, SLT, Denali. Sierra is the base trim level that starts from $41,995 for the 2WD version and $44,995 for the 4WD version. The top Denali trim has all the goodies and comes packed with creature comfort which is available from $57,795 for 2WD version and $61,095 for 4WD version.

With every trim, you got a choice of 3 engines and 3 transmissions. A Vortec 6.0L Variable Valve Timing V8 SFI engine developing 360 horsepower and 380 pound-feet of torque, 6.0L V8 Gaseous CNG/LPG capable engine with 360horsepower and 380 pound-feet of torque and Duramax 6.6L turbo diesel V8 making 445 horsepower and 910 pound-feet of torque.

Trims

Base

SLE

MSRP (2WD) (LB)

$41,195 $44,995

MSRP (2WD) (DRW)

$42,395 $46,195
MSRP (4WD) (LB) $43,995 $47,795
MSRP (4WD) (DRW) $45,195 $48,995

Features

6.0L Vortec V8 (gas)

Digital Steering Assist (Requires Crew Cab model or Double Cab model equipped with Duramax 6.6L Turbo-Diesel V8 engine)

 

StabiliTrak stability control system

Electronic transfer case (4WD models)

 

Hill-start assist

Black power-adjustable vertical trailering mirrors

 

The automatic locking rear differential

Remote keyless entry with a remote locking tailgate

 

Rear vision camera

8" diagonal GMC Infotainment System

 

7" diagonal GMC Infotainment System

4.2" diagonal driver information center

   

LED cargo box lighting

There are optional packages available to make your Sierra even more decked up for glory. A convenience package that includes remote locking tailgate, remote keyless entry, LED cargo box lighting under bed rails, etc. The protection package includes all-weather floor liner and black molded splash guards.

Essential package includes soft folding cover for the cargo bed, all-weather floor liner, etc. and Snow Plow prep package that includes a 220-amp alternator, transfer case shield to protect the transfer case from debris and heavy-duty front springs.

We Recommend

We would suggest SLT dual rear wheel Trim as it has hosts of features in the interior and safety department with a lot of optional packages. You also get the option of picking the 6.6L Duramax Turbodiesel engine to give you the best hauling capacity and good low range torque to aid you in tough situations.

2020 GMC Sierra 3500HD Double Cab Engine and Performance

GMC Sierra 3500HD is all about capability and optimal performance. It comes with a Vortec 6.0L Variable Valve Timing V8 SFI engine that produces 360 horsepower and 380 pound-feet of torque and the legendary Duramax 6.6L turbo diesel V8 developing 445 horsepower with staggering 910 pound-feet of torque. The Gasoline engine is mated to a 6-speed automatic transmission but the diesel one gets 6-speed Allison automatic transmission.

Models

GMC Sierra 3500 HD

Dodge Ram 3500

Chevy Silverado 3500 HD

Ford F-350

MSRP

$41,195

$37,245

$41,890

$37,920

Engine

6.0L V8 SFI

5.7L V8 HEMI VVT

6.0L V8 SFI

6.2L 2-Valve SOHC EFI NA V8

Transmission

6-Speed Automatic

6-Speed Automatic

6-Speed Automatic

6-Speed Automatic

Power

360 hp

383 hp

360 hp

385 hp

Torque

380 lb-ft

400 lb-ft

380 lb-ft

430 lb-ft

In comparison, Ford F-350 and Dodge are almost identical if you see the power they make. From its 6.2L V8, Ford makes 385 horsepower whereas Dodge makes 383 horsepower, just 2 horsepower less, from its 5.7L HEMI V8. Ford has more torque and considering the price of both of them, they are only $700 dollars apart.

Chevy Silverado and GMC Sierra are almost identical in price terms and also dearer to the Ford and Dodge by $4,000. The power and torque they make from the 6.0L V8 engine is 360 horsepower which is identical.

Acceleration

2020  GMC Sierra 3500HD is a truck, so it won't be super quick or as nimble and agile as sports cars. It does 0-60MPH in 6.7 seconds and a quarter-mile time of 15.3 seconds, pretty decent for a truck with huge dimensions and massive weight.

Models

GMC Sierra 3500 HD

Dodge Ram 3500

Chevy Silverado 3500 HD

Ford F-350

0-60 MPH

6.7 sec

6.3 sec

6.7 sec

8.2sec

Quarter mile

15.3

15.1 sec

15.3 sec

16.8 sec

Engine

6.0L

5.7L

6.0L

6.2L

Emission (Tons/yr of CO2 Emissions @ 15K mi/year)

N/A

N/A

N/A

N/A

Against the Competition, Ram 3500 is the fastest in all the times despite having a less cubic capacity at 5.7L. Chevy Silverado and GMC Sierra are equal in the time at 6.7 seconds for 0-60MPH and a quarter-mile time of 15.3 seconds. Ford F350 however, loses out big time by 2 seconds from Ram and 1.5 seconds than GMC Sierra and Chevrolet Silverado.

Handling and Steering

GMC Sierra 3500HD is a huge truck and it's not the most maneuverable or comfortable vehicle in the segment but it still gives a pleasant driving experience. The steering is not that responsive and can make you falter a bit when making sharp turns. The ride quality is actually satisfying and the vehicle runs easily over big bumps and can tackle rough roads.

The 6-speed automatic transmission keeps in overdrive gear for smooth and efficient operation. The Suspension package is standard across all models to give a smoother ride and also helps in maintaining quality while towing a trailer or carrying a load.

Braking

2020 GMC Sierra 3500HD has 13.8-inch ventilated discs in the front and 14.1 inches ventilated discs in the back. The tires are all seasons. With a curb weight of 6421 pounds, It's close to 3 tons. Braking distance is unavailable, but it wouldn't be that quick because of its heavyweight.

Model

GMC Sierra 3500 HD

Dodge Ram 3500

Chevy Silverado 3500 HD

Ford F-350

Brake Front(in)

13.8

14.2

13.8

14.3

Brake Rear(in)

14.1

14.1

14.1

14.3

Curb weight(lbs)

6423

6421

7239

6279

60-0 MPH (ft.)

N/A

N/A

N/A

N/A

Comparing the brakes, Ford F-350 has bigger brakes at 14.3 inches in both front and rear and weighs less than every other truck at 6279 pounds. Chevrolet Silverado and GMC Sierra have the same size ventilated discs of 13.8 inches in the front and 14.1 in the rear.

Silverado is the heaviest among the lot at 7239 pounds. Ford F-350 is the lightest at 6279 pounds. GMC Sierra and Dodge Ram are almost identical in weights at 6423 and 6421 pounds respectively.

Payload Capacity

2020  GMC Sierra 3500HD has a payload capacity of 4052 pounds which is just massive. It can easily carry 2 Suzuki Hayabusas in the cargo bed which sounds unbelievable!!

Model

GMC Sierra 3500 HD

Dodge Ram 3500

Chevy Silverado 3500 HD

Ford F-350

capacity (lbs)

4052

4090

5761

3870

In comparison, the heavyweight Chevy Silverado has a payload capacity of 5761 pounds, which is absolutely bonkers. It has a massive advantage of nearly 1700 pounds over the closest rivals ie: - Ram 3500 and Sierra 3500HD. GMC comes in third in payload capacity at 4052 pounds and Ford has the least payload capacity of 3870 pounds.

Towing Capacity

GMC Sierra 3500HD is rated to pull up to 23,300 pounds which is incredible. But the 2WD versions of the GMC 3500HD can still tow 14,200 pounds considering the fact it is not 4-wheel drive.

Model

GMC Sierra 3500 HD

Dodge Ram 3500

Chevy Silverado 3500 HD

Ford F-350

Drive Train

2WD

2WD

2WD

2WD

Power Train

6.0L

5.7L

6.0L

6.2L

Weight (lbs)

14200

17520

17500

12700

In comparison, Ram 3500 has the edge over Ford F-350 and GMC Sierra 3500HD by 4800 pounds and 3,300 pounds respectively. Chevy Silverado also pulls 17500 pounds, it's a surprise as Silverado and Sierra are one model in 2 different body designs but one does better.

2020 GMC Sierra 3500HD Double Cab Fuel Economy

6.0/10

Heavy duty trucks are not rated for fuel economy. It's obvious they are going to massively low because they are bought for the work they are meant to do not for pleasure they provide.

2020 GMC Sierra 3500HD Double Cab Interior

8.0/10

The 3500HD offers great interior comfort. The truck can take up to 6 passengers and has ample creature comfort to keep all passengers at ease. The front and rear head, shoulder and legroom are good in the crew cab model due to wide-body, tall stance, and long wheelbase.

Model

GMC Sierra 3500 HD

Dodge Ram 3500

Chevy Silverado 3500 HD

Ford F-350

Passenger capacity

6

5

6

6

Front (Head/Shoulder/Leg) (In.)

42.8/64.8/45.2

41.0/66.0/41.0

42.8/64.8/45.2

40.8/66.7/43.9

Rear (Head/Shoulder/Leg) (In.)

40.5/64.3/40.9

39.9/65.7/40.3

40.5/64.3/40.9

40.4/65.9/43.6

In comparison, Chevrolet Silverado and GMC Sierra have the best front headroom and front legroom at 42.8 inches and 45.2 inches respectively whereas shoulder room, front and rear is best in Ford F-350 at 66.7 and 65.9 inches respectively. Talking about the rear, the Headroom is identical for GMC Sierra and Chevrolet Silverado at 40.5 inches which is the best, Ford is almost equal in that department too at 40.4 inches.

Infotainment

The 3500HD trim gets a 7-inch diagonal infotainment system whereas all the other trim levels get an 8-inch infotainment system. Apple car play and android auto is standard across all trim levels. You also get voice-activated technology to make your browsing a little easier and minimal distraction as you don't have to move your hand from the steering column.

2020 GMC Sierra 3500HD Double Cab Infotainment Display

Also, it has got Bluetooth streaming audio and you can also check your phone book listings or incoming caller on the color display. It has got a 6 speaker system which gives great sound and enjoyable listening experience.

2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab
2020 GMC Sierra 3500HD Double Cab

2020 GMC Sierra 3500HD Double Cab Exterior

8.0/10

The Sierra 3500HD is long at 239.4 inches, has a width of 80.5 inches and a height of 78.3 inches with a ground clearance of 8.5 inches. These trucks are built tough to the core will do anything and tackle any terrain due to durable and capable designs. The wheelbase is 153.7 inches to give rear passengers maximum comfort while you're driving down the country roads.

Model

GMC Sierra 3500 HD

Dodge Ram 3500

Chevy Silverado 3500 HD

Ford F-350

Curb weight(lbs)

6423

6421

7239

6279

Length(in)

239.5

237.4

239.5

250.0

Width(in)

80.5

79.4

80.5

80.0

Height(in)

78.3

78.4

78.3

78.2

Ground clearance(in)

8.5

7.3

8.5

8.5

Wheelbase(in)

153.7

149.5

153.7

160.0

In comparison, Ford F-350 is the longest among the competitors at 250 inches with a wheelbase of 160 inches makes it the cabin with most space for rear passengers.

Chevrolet Silverado and GMC Sierra have identical measurements in every department as they are under the same parent company, General Motors. As for the ground clearance, Ford, Chevrolet, and GMC are identical at 8.5 inches.

Bed Dimensions

GMC Sierra 3500HD has a bed length of 76.3 inches and a width of 66.4 inches. It is sufficient enough to carry most of your daily cargo from one place to another.

Models

GMC Sierra 3500 HD

Dodge Ram 3500

Chevy Silverado 3500 HD

Ford F-350

Width (inch)

51.0

66.4

51.0

50.5

Length (inch)

78.8

76.3

78.8

81.9

With a bed length of 81.9 inches, Ford F-350 gets first place but it falls short in the width department at 50.5 inches. Chevrolet Silverado and GMC Sierra have the same bed dimensions at 78.8 inches and a width of 51 inches. Dodge has the smallest cargo bed at 76.3 inches but has a maximum width of 66.4 inches.

2020 GMC Sierra 3500HD Double Cab Safety

7.0/10

The GMC is certainly a very capable truck, which is why GMC has added a long list of safety features for passenger safety as well as driver-assist features for trailering as well as graded climbing and descending. The truck isn’t rated for passenger safety through crash testing by NHTSA or the IIHS. The features are listed as follows:

  • Frontal driver and right front-passenger single-stage airbags
  • Rear Vision camera system
  • StabiliTrak stability control system
  • Rollover mitigation technology
  • Trailer sway control
  • Hill-start assist
  • Lane Departure Warning
  • Forward Collision Alert
  • Safety Alert Seat
  • Front and Rear Park Assist

2020 GMC Sierra 3500HD Double Cab Competition

GMC Sierra 3500HD vs Chevrolet Silverado 3500 HD

Even though these trucks seem like twins at first glance, they have their own individual character. The Sierra 3500HD is a comfortable truck with great ride quality, feature-rich interiors, and high-quality materials, while the Silverado 3500HD is a reliable work truck with plenty of brute force under the hood. From the outside, it’s all up to your personal preferences, both trucks look badass and have an imposing road presence.

2020 Chevrolet Silverado 3500 HD

GMC Sierra 3500HD vs RAM 3500

The Silverado isn’t the only big hauler you can consider, the Ram is also a sturdy brute which boasts class-leading towing capacity. However, that’s the only arena where the Ram prevails. The engine feels underpowered on highways and the infotainments feel ancient compared to the rivals, especially Ford.

2020 RAM 3500

GMC Sierra 3500HD vs Ford F-350

The 2017 Ford F-350 is a complete redesign, and the new truck is better in terms of reliability, features, interiors, and comfort, despite coming at a lower price than the GMC. Ford comes with a 6.7L engine in its top trim to counter the Sierra’s 6.6L Duramax diesel engine, however, as unbelievable it sounds, Ford’s engine can produce even higher torque at 935 lb-ft.

2020 Ford F-350

2020 GMC Sierra 3500HD Double Cab Final Verdict

8.2/10

The GMC has given the big truck two great engines a 6.0L gas engine and a mammoth 6.6L turbo-diesel engine. The handling is smooth and comfortable to cruise through city streets and highways, despite the maneuverability issues, which exist in all full-size trucks.

Hauling and cargo carrying capacity is top-notch, the Ram and Silverado have slightly higher numbers, but the Sierra performs well-enough to compete. 

×
Refresh