GMC 2005 Sierra 1500 Pickup Owner's Manual page 374

Vehicle*
K-2500 Crew Cab Short Box HD (4WD)*
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 3,000 lbs (1 361 kg) maximum.
Vehicle*
K-2500 Crew Cab Long Box HD (4WD)
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 3,000 lbs (1 361 kg) maximum.
Vehicle*
C-3500 Extended Cab (2WD)
6000 V8
8100 V8
6.6L V8 Diesel (Manual)
6.6L V8 Diesel (Auto)
4-80
Axle Ratio Maximum Trailer Weight
4.10 9,800 lbs (4 445 kg)
3.73 12,000 lbs (5 443 kg)
4.10 12,000 lbs (5 443 kg)
3.73 12,000 lbs (5 443 kg)
Axle Ratio Maximum Trailer Weight
4.10 9,600 lbs (4 354 kg)
3.73 12,000 lbs (5 443kg)
4.10 12,000 lbs (5 443kg)
3.73 12,000 lbs (5 443kg)
Axle Ratio Maximum Trailer Weight
4.10 9,700 lbs (4 400 kg)
4.10 12,000 lbs (5 443 kg)**
3.73 12,000 lbs (5 443 kg)**
3.73 12,000 lbs (5 443 kg)
GCWR
16,000 lbs (7 257 kg)
20,000 lbs (9 072 kg)
22,000 lbs (9 979 kg)
22,000 lbs (9 979 kg)
GCWR
16,000 lbs (7 257 kg)
20,000 lbs (9 072 kg)
22,000 lbs (9 979 kg)
22,000 lbs (9 979 kg)
GCWR
16,000 lbs (7 257 kg)
22,000 lbs (9 979 kg)
23,500 lbs (10 659 kg)
23,500 lbs (10 659 kg)