2001 GMC Sierra 1500 Pickup Owner's Manual - Page 285

K-1500 Regular Cab Long Box (4WD)* Engine (Trans.) 4300 V6 (Auto) 4300 V6 (Manual) 4800 V8 (Auto) 4800 V8 (Manual) 5300 V8 Axle Ratio 3.42 3.73 3.42 3.73 3.73 4.10 3.73 4.10 3.73 4.10 Max. Trailer Wt. 4,800 lbs. (2 177 kg) 5,300 lbs. (2 404 kg) 3,800 lbs. (1 724 kg) 4,300 lbs. (1 950 kg) 7,200 lbs. (3 266 kg) 8,200 lbs. (3 719 kg) 5,200 lbs. (2 359 kg) 6,200 lbs. (2 812 kg) 8,200 lbs. (3 719 kg) 9,200 lbs. (4 173 kg) K-1500 Extended Cab Long Box (4WD)* Engine (Trans.) 4800 V8 (Auto) 4800 V8 (Manual) 5300 V8 Axle Ratio 3.73 4.10 3.73 4.10 3.73 4.10 Max. Trailer Wt. 6,800 lbs. (3 084 kg) 7,800 lbs. (3 538 kg) 4,800 lbs. (2 177 kg) 5,800 lbs. (2 631 kg) 7,800 lbs. (3 538 kg) 8,800 lbs. (3 992 kg) * Weight-distributing hitch tongue weight 10% to 15% of trailer weight 1,000 lb. (454 kg) maximum. Fifth-wheel hitch tongue weight 15% to 25% of trailer weight 1,500 lb. (680 kg) maximum. 4-63