2021 Chassis Cab Work Truck Guide

2021 Model Year Ford, GM, Ram Chassis Cab Specs & Comparison

Models with a gross vehicle weight rating greater than 19,500 lbs are not covered in this guide and have been omitted. The vehicles discussed herein are class 3 to class 5 trucks, covering a GVWR range between 10,001 and 19,500 lbs. Exclusions include the Ford F-600, F-650, F-750, and Chevrolet Silverado 6500HD. All weight ratings and values are the maximum available for a properly equipped vehicle; actual ratings may vary and will depend on production selection, configuration, optional equipment, and upfit conditions.

GVWR

Gross Vehicle Weight Rating. Maximum rated weight of a vehicle and its cargo, including passengers (excluding trailers).

GCWR

Gross Combined Weight Rating. Maximum rated combined weight of a vehicle, its cargo, and trailer(s).

FAWR

Front Axle Weight Rating. Maximum rated weight that can be applied to the axle.

RAWR

Rear Axle Weight Rating. Maximum rated weight that can be applied to the axle.

Payload

Maximum weight of combined cargo that a vehicle can carry (excluding trailers).

Conventional Tow

Maximum rated trailer weight when towing using a conventional "bumper pull" receiver hitch.

5th Wheel Tow

Maximum rated trailer weight when towing using a 5th wheel hitch system.

Gooseneck Tow

Maximum rated trailer weight when using a gooseneck hitch system.

SRW

Single rear wheel

DRW

Dual rear wheel

TBA

To be announced; awaiting release of ratings from the manufacturer

TBC

To be confirmed; awaiting confirmation on ratings released from the manufacturer

2020 Chevrolet 3500HD chassis cab

2021 Chevrolet Silverado 3500HD/4500HD/5500HD Chassis cabs

Model:

Sierra/Silverado 3500HD Chassis Cab

Silverado 4500HD

Silverado 5500HD

Gas Engine:

GM 6.6L V-8

N/A - gas engine not available

Diesel Engine:

6.6L Duramax V-8 L5P

6.6L Duramax V-8 L5D

Peak Horsepower (gas):

401 hp @ 5,200 rpm

N/A - gas engine not available

Peak Torque (gas):

464 lb-ft @ 4,000 rpm

N/A - gas engine not available

Peak Horsepower (diesel):

445 hp @ 2,800 rpm

350 hp @ 2,600 rpm

Peak Torque (diesel):

910 lb-ft @ 1,600 rpm

700 lb-ft @ 1,600 rpm

Transmission(s):

GM 6L90 6 speed automatic (gas only)
Allison 10L1000 10 speed automatic (diesel only)

Allison 1700/1750/2700 Series 6 speed automatic

Max GVWR:

14,000 lbs

16,500 lbs

19,500 lbs

Max GCWR

24,000 - 40,000 lbs

26,000 - 37,000 lbs

Max FAWR:

6,000 lbs

7,500 lbs

8,000 lbs

Max RAWR:

10,400 lbs

15,500 lbs

15,500 lbs

Max Payload:

7,571 lbs

N/A - to be calculated after upfit using GVWR

Max Conventional Tow:

N/A - to be calculated after upfit using GCWR

Max 5th Wheel/Gooseneck Tow:

 

2021 Ram 3500/4500/5500 Chassis Cabs

2020 Ram chassis cab trucks

Model:

Ram 3500 Chassis Cab, SRW

Ram 3500 Chassis Cab, DRW

Ram 4500 Chassis Cab

Ram 5500 Chassis Cab

Gas Engine:

6.4L Hemi V-8

Diesel Engine:

6.7L Cummins I-6

Peak Horsepower (gas):

410 hp @ 5,600 rpm

370 hp @ 4,600 rpm

Peak Torque (gas):

429 lb-ft @ 4,000 rpm

429 lb-ft @ 4,000 rpm

Peak Horsepower (diesel):

360 hp @ 2,800 rpm

Peak Torque (diesel):

800 lb-ft @ 1,700 rpm

Transmission(s):

Aisin AS66RC w/ 6.4L Hemi
Aisin AS69RC w/ 6.7L Cummins turbodiesel

Max GVWR:

10,700 lbs

14,000 lbs

16,500 lbs

19,500 lbs

Max GCWR

24,000 lbs

33,000 lbs

37,500 lbs

43,000 lbs

Max FAWR:

5,500 lbs

6,000 lbs

7,250 lbs

7,250 lbs

Max RAWR:

6,800 lbs

9,850 lbs

12,000 lbs

13,500 lbs

Max Payload:

4,230 lbs

7,750 lbs

9,690 lbs

12,510 lbs

Max Conventional Tow:

18,950 lbs

23,000 lbs

23,000 lbs

23,000 lbs

Max Gooseneck/5th Wheel Tow:

18,950 lbs

25,890 lbs

29,770 lbs

35,220 lbs

 

2020 Ford Super Duty chassis cab

2021 Ford F-350/F-450/F-550 Chassis Cabs

Model:

Ford F-350 Chassis Cab, SRW

Ford F-350 Chassis Cab, DRW

Ford F-450 Chassis Cab

Ford F-550 Chassis Cab

Gas Engines:

6.2L SOHC 2v V-8
7.3L DECVT 2v V-8

7.3L DECVT 2v V-8

Diesel Engine:

6.7L Power Stroke V-8

Peak Horsepower (gas):

385 hp @ 5,750 rpm (6.2L)

350 hp @ 3,900 rpm

350 hp @ 3,900 rpm (7.3L)

Peak Torque (gas):

430 lb-ft @ 3,800 rpm (6.2L)

468 lb-ft @ 3,900 rpm

468 lb-ft @ 3,900 rpm (7.3L

Peak Horsepower (diesel):

330 hp @ 2,600 rpm

Peak Torque (diesel):

825 lb-ft @ 2,000 rpm

Transmission:

TorqShift 10R140 10 speed automatic

Max GVWR:

11,500 lbs

16,500 lbs

16,500 lbs

19,500 lbs

Max GCWR

30,000 lbs

32,500 lbs

35,000 lbs

40,000 lbs

Max FAWR:

5,990 lbs

7,500 lbs

7,500 lbs

7,500 lbs

Max RAWR:

7,230 lbs

12,880 lbs

12,880 lbs

14,706 lbs

Max Payload:

4,970 lbs

8,800 lbs

9,850 lbs

12,750 lbs

Max Conventional Tow:

13,500 lbs

17,500 lbs

17,500 lbs

18,500 lbs

Max 5th Wheel/Gooseneck Tow:

22,700 lbs

24,700 lbs

26,600 lbs

31,600 lbs

Sources: www.ford.com, www.chevrolet.com, www.gmc.com, www.ramtrucks.com