2004 GMC Sierra 1500 Pickup Owner's Manual - Page 377

Vehicle* Axle Ratio Maximum Trailer Weight GCWR C-2500 Crew Cab Short Box HD (2WD)** 6000 V8 4.10 10,000 lbs. (4 536 kg) 16,000 lbs. (7 257 kg) 3.73 12,000 lbs. (5 443 kg) 20,000 lbs. (9 072 kg) 8100 V8 4.10 12,000 lbs. (5 443 kg) 22,000 lbs. (9 979 kg) 6.6L V8 Diesel 3.73 12,000 lbs. (5 443 kg) 22,000 lbs. (9 979 kg) *Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 2,500 lbs. (1 133 kg) maximum. Vehicle* Axle Ratio Maximum Trailer Weight GCWR C-2500 Crew Cab Long Box HD (2WD) 6000 V8 4.10 10,000 lbs. (4 536 kg) 16,000 lbs. (7 257 kg) 3.73 12,000 lbs. (5 443 kg) 20,000 lbs. (9 072 kg) 8100 V8 4.10 12,000 lbs. (5 443 kg) 22,000 lbs. (9 979 kg) 6.6L V8 Diesel 3.73 12,000 lbs. (5 443 kg)** 22,000 lbs. (9 979 kg) *Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,000 lbs. (1 360 kg) maximum. Vehicle* K-2500 LD (4WD)* 6000 V8 Axle Ratio Maximum Trailer Weight GCWR 3.73 8,300 lbs. (3 765 kg) 14,000 lbs. (6 350 kg) 4.10 10,300 lbs. (4 672 kg) 16,000 lbs. (7 257 kg) *Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 2,500 lbs. (1 133 kg) maximum. 4-81