2009 Chevrolet Silverado 2500 HD Extended Cab Owner's Manual - Page 383

Vehicle 4.8L V8 (c) 4.8L V8 5.3L V8 4 Speed Automatic 5.3L V8 4 Speed Automatic 5.3L V8 6 Speed Automatic Axle Ratio 3.23 3.73 3.42 3.73 3.42 3.42 Maximum Trailer Weight 5,100 lbs (2 313 kg) 7,100 lbs (3 221 kg) 7,000 lbs (3 175 kg) 8,000 lbs (3 629 kg) 6,500 lbs (2 948 kg) 8,700 lbs (3 946 kg) GCWR (a) 10,000 lbs (4 536 kg) 12,000 lbs (5 443 kg) 12,000 lbs (5 443 kg) 13,000 lbs (5 897 kg) 11,500 lbs (5 216 kg) 15,000 lbs (6 804 kg) 5.3L V8 6 Speed Automatic, K5L HD Cooling Pkg - Fifth-Wheel Trailer 5.3L V8 6 Speed Automatic, K5L HD Cooling Pkg - Conventional Trailer 1500 Series 2WD Extended Cab Long Box (b) 5.3L V8 4 Speed Automatic - Fifth-Wheel Trailer 5.3L V8 4 Speed Automatic - Conventional Trailer 5.3L V8 6 Speed Automatic 5.3L V8 6 Speed Automatic, K5L HD Cooling Pkg - Fifth-Wheel Trailer 5.3L V8 6 Speed Automatic, K5L HD Cooling Pkg - Conventional Trailer 3.42 10,000 lbs (4 536 kg) 15,000 lbs (6 804 kg) 3.73 3.73 3.42 3.42 7,500 lbs (3 402 kg) 7,600 lbs (3 447 kg) 6,000 lbs (2 722 kg) 8,700 lbs (3 946 kg) 13,000 lbs (5 897 kg) 13,000 lbs (5 897 kg) 11,500 lbs (5 216 kg) 15,000 lbs (6 804 kg) 3.42 9,500 lbs (4 309 kg) 15,000 lbs (6 804 kg) 4-55