1998 GMC Suburban Owner's Manual - Page 240

Vehicle C- 1500 (2WD) Utility Engine 5.7L Axle Ratio 3.08 3.42 3.73 Max. Trailer Wt. 5,000 lbs. (2 270 kg) 6,000 lbs. (2 724 kg) 7,000 lbs. (3 178 kg) 5,500 lbs. (2 497 kg) K- 1500 (4WD)Utility 5.7L 3.42 3.73 6,500 Ibs. (2 95 I kg) kg) 6,000 lbs. (2 724 6.5L Diesel 3.42 3.73 7,000 Ibs. (3 178 kg) C- 1500 (2WD) Suburban 5.7L 3.42 3.73 5,500 lbs. (2 497 kg) 6,500 Ibs. (2 951 kg) 6.5L Diesel 3.42 5,500 Ibs. (2 497 kg) 5,000 lbs. (2 270 kg) 6,000 lbs.(2 724 kg) 5,000 lbs. (2 270 kg) K- 1500 (4WD) Suburban 5.7L 3.42 3.73 6.SL Diesel 3.42 4-48