GMC 2003 Sierra 1500 Pickup Owner's Manual page 360

Vehicle*
I
Axle Ratio
I
Maximum Trailer Weight
I
GCWR
K-2500 Regular Cab Long Box HD (4WD)*
*
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 3,000 Ibs. (1 360 kg)
maximum.
** Limited to 12,000 Ibs. (5 443 kg) with weight distributing hitch.
*
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 3,000 Ibs. (1 360 kg)
maximum.
** Limited to 12,000 Ibs. (5 443 kg) with weight distributing hitch.
4-79