2001 GMC Sierra 1500 Pickup Owner's Manual - Page 288

C-2500 Crew Cab Long Box HD (2WD)* Engine Axle Ratio 6000 V8 4.10 8100 V8 3.73 4.10 6600 V8 Diesel 3.73 4.10 Max. Trailer Wt. 10,200 lbs. (4 627 kg) 13,500 lbs. (6 123 kg)** 15,500 lbs. (7 031 kg)** 14,900 lbs. (6 758 kg)** 14,900 lbs. (6 758 kg)** K-2500 Extended Cab Short Box HD (4WD)* Engine Axle Ratio 6000 V8 4.10 8100 V8 3.73 4.10 6600 V8 Diesel 3.73 4.10 Max. Trailer Wt. 10,200 lbs. (4 627 kg) 13,500 lbs. (6 123 kg)** 15,500 lbs. (7 031 kg)** 15,400 lbs. (6 985 kg)** 15,400 lbs. (6 985 kg)** K-2500 Extended Cab Short Box (4WD)* Engine Axle Max. Trailer Wt. Ratio 6000 V8 3.73 8,300 lbs. (3 765 kg) 4.10 10,300 lbs. (4 672 kg) * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 1,200 lb. (544 kg) maximum. Fifth-wheel hitch tongue weight 15% to 25% of trailer weight 2,500 lb. (1 134 kg) maximum. ** Fifth-wheel hitch rating; weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg) maximum. 4-66