2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 433

Vehicle Axle Ratio 1500 Series 2WD Regular Cab Standard Box (b) 4.3L V6 (c) 3.23 4.3L V6 (c) 3.73 4.8L V8 (c) 3.23 4.8L V8 3.73 5.3L LMG V8 3.08 5.3L LMG V8, K5L HD Cooling Pkg 3.08 5.3L LMG V8 K5L HD Cooling Pkg 3.42 1500 Series 2WD Extended Cab Standard Box (b) 4.3L V6 (c) 3.23 4.8L V8 (c) 3.23 4.8L V8 3.73 5.3L V8 3.08 5.3L V8 K5L HD Cooling Pkg 3.08 5.3L V8 K5L HD Cooling 3.42 Pkg - Fifth-Wheel Trailer 5.3L V8 K5L HD Cooling 3.42 Pkg - Conventional Trailer 6.2L V8 3.42 6.2L V8 K5L HD Cooling 3.42 Pkg - Fifth-Wheel Trailer Maximum Trailer Weight 4,800 lbs (2 177 kg) 5,400 lbs (2 449 kg) 4,700 lbs (2 132 kg) 7,200 lbs (3 266 kg) 6,600 lbs (2 994 kg) 7,400 lbs (3 357 kg) 9,100 lbs (4 128 kg) 4,400 lbs (1 996 kg) 4,700 lbs (2 132 kg) 6,700 lbs (3 039 kg) 6,200 lbs (2 812 kg) 6,900 lbs (3 130 kg) 9,200 lbs (4 173 kg) 9,700 lbs (4 400 kg) 6,700 lbs (3 039 kg) 9,300 lbs (4 218 kg) GCWR (a) 9,500 lbs (4 309 kg) 10,000 lbs (4 536 kg) 9,500 lbs (4 309 kg) 12,000 lbs (5 443 kg) 11,500 lbs (5 216 kg) 12,200 lbs (5 534 kg) 14,000 lbs (6 350 kg) 9,500 lbs (4 309 kg) 10,000 lbs (4 536 kg) 12,000 lbs (5 443 kg) 11,500 lbs (5 216 kg) 12,200 lbs (5 534 kg) 15,000 lbs (6 804 kg) 15,000 lbs (6 804 kg) 12,000 lbs (5 443 kg) 15,000 lbs (6 804 kg) 5-57