GMC 2003 Sierra 1500 Pickup Owner's Manual page 359

Vehicle*
I
Axle Ratio
C-2500 Crew Cab Long Box HD (2WD)
Maximum Trailer Weight
I
GCWR
16,000 Ibs. (7 264 kg) 9,900 Ibs. (4 490 kg) 4.10 6000 V8
81 00 V8
4.1 0 15,500 Ibs. (7 030 kg) 22,000 Ibs. (9 988 kg)
6.6L V8 Diesel 3.73 15,200 Ibs. (6 894 kg)**
*
Tongue weight should be 10 percent to 15 percent of trailer weight up to 1,500 Ibs (680 kg). Fifth-wheel or
22,000 Ibs. (9 988 kg)
gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,000 Ibs. (1 360 kg)
maximum.
**
Limited to 12,000 Ibs. (5 443 kg) with weight distributing hitch.
3.73 20,000 Ibs. (9 080 kg) 13,500 Ibs. (6 123 kg)**
Vehicle"
Maximum Trailer Weight
I
GCWR
Axle Ratio
K-2500 LD (4WD)*
6000 V8
8,200 Ibs. (3 719 kg)
10,200 Ibs. (4 626 kg)
I
14,000 Ibs. (6 356 kg)
16,000 Ibs. (7 264 kg)
*
Tongue weight should be 10 percent to 15 percent of trailer weight up to 1,500 Ibs (680 kg). Fifth-wheel or
gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 2,500 Ibs. (1 133 kg)
maximum.
** Limited to 12,000 Ibs. (5 443 kg) with weight distributing hitch.
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