GMC 2004 Sierra 1500 Pickup Owner's Manual page 380

Vehicle*
C-3500 Extended Cab (2WD)
6000 V8
8100 V8
6.6L V8 Diesel
C-3500 Crew Cab (2WD)*
6000 V8
8100 V8
6.6L V8 Diesel
*Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,500 lbs.
(1 587 kg) maximum.
** Limited to 12,000 lbs. (5 443 kg) with weight distributing hitch.
Vehicle*
K-3500 Regular Cab (4WD)
6000 V8 Dual Rear
Wheel
6000 V8 Single Rear
Wheel
8100 V8 Dual Rear
Wheel
8100 V8 Single Rear
Wheel
6.6L V8 Dual Rear
Wheel
4-84
Axle Ratio Maximum Trailer Weight
4.10 9,800 lbs. (4 445 kg)
4.10 15,400 lbs. (6 985 kg)**
3.73 15,200 lbs. (6 894 kg)**
4.10 9,600 lbs. (4 354 kg)
4.10 15,200 lbs. (6 894 kg)**
3.73 15,000 lbs. (6 803 kg)**
Axle Ratio Maximum Trailer Weight
4.10 9,900 lbs. (4 490 kg)
4.10 10,100 lbs. (4 581 kg)
4.10 12,000 lbs. (5 443 kg)
4.10 12,000 lbs. (5 443 kg)
3.73 12,000 lbs. (5 443 kg)
GCWR
16,000 lbs. (7 257 kg)
22,000 lbs. (9 979 kg)
22,000 lbs. (9 979 kg)
16,000 lbs. (7 257 kg)
22,000 lbs. (9 979 kg)
22,000 lbs. (9 979 kg)
GCWR
16,000 lbs. (7 257 kg)
16,000 lbs. (7 257 kg)
22,000 lbs. (9 979 kg)
22,000 lbs. (9 979 kg)
22,000 lbs. (9 979 kg)