2003 GMC Sierra 1500 Pickup Owner's Manual - Page 350

I Vehicle* I Ratio Axle 3.08 3.42 I Maximum Trailer Weight I GCWR I C-1500 Regular Cab Short Box (2WD)* 4300 V6 (Auto) F 6 (Manual) 4800 V8 (Auto) (Manual) 4800 V8 4,500 Ibs. (2 041kg) 5,000 Ibs. (2 267kg) 4,000 3,500 Ibs. Ibs. (1 kg) (1 587 814 kg) 6,400 Ibs. (2 902 kg) 7,400 Ibs. (3 356 kg) 4,400 Ibs. (1 995 kg) 5,400 Ibs. (2 449 kg) 7,400 Ibs. (3 356 kg) 810 8,400 (3 Ibs. kg) 9,000 Ibs. (4 086 kg) 9,500 Ibs. (4 313 kg) 8,000 8,500 (3 632 kg) Ibs. 859 kg) I I I I I i;;: I 3.42 3.73 z:; II Ibs 11,000 Ibs. (4 994 kg) 12,000 Ibs. (5 448 kg) 9,000 Ibs. (4 086 kg) 10,000 Ibs. (4 540 kg) 12,000 Ibs. (5 448 kg) 13,000 Ibs. (5 902 kg) * Tongue weight should be 10 percent to I 15 percent of trailer weight up to 1,000 Ibs (454 kg). Fifth-wheel or gooseneck kingpin weight 15 percent to 25 percent of trailer weight up to 1,500 Ibs. (680 kg) maximum. 4-69