GMC 2001 Sierra 1500 Pickup Owner's Manual page 288

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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
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K 2500 Extended Cab Short Box (4WD)*
Engine Axle
Ratio
6000 V8 3.73
4.10
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* Weight distributing hitch tongue weight 10% to 15% of trailer weight 1,200 lb. (544 kg) maximum.
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Fifth wheel hitch tongue weight 15% to 25% of trailer weight 2,500 lb. (1 134 kg) maximum.
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** Fifth wheel hitch rating; weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg) maximum.
4-66
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)**
Max. Trailer Wt.
8,300 lbs. (3 765 kg)
10,300 lbs. (4 672 kg)
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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)**