2006 GMC Sierra 1500 Pickup Owner's Manual - Page 393

Vehicle* Axle Ratio Maximum Trailer Weight GCWR K-3500 Extended Cab (4WD)* 6000 V8 Dual Rear 4.10 9,400 lbs (4 264 kg) 16,000 lbs (7 257 kg) Wheel 6000 V8 Single Rear 4.10 9,600 lbs (4 354 kg) 16,000 lbs (7 257 kg) Wheel 8100 V8 Dual Rear 4.10 15,000 lbs (6 804 kg) 22,000 lbs (9 979 kg) Wheel 8100 V8 Single Rear 4.10 15,000 lbs (6 804 kg) 22,000 lbs (9 979 kg) Wheel 6.6L V8 Diesel Dual 3.73 16,300 lbs (7 394 kg) 23,500 lbs (10 659 kg) Rear Wheel (Manual) 6.6L V8 Diesel Dual 3.73 16,300 lbs (7 394 kg) 23,500 lbs (10 659 kg) Rear Wheel (Auto) 6.6L V8 Diesel Single 3.73 15,000 lbs (6 804 kg) 22,000 lbs (9 979 kg) Rear Wheel * Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,500 lbs (1 587 kg) maximum. Fifth-wheel or gooseneck GCWR for 6.6L V8 Diesel 3500 SRW series models is 23,200 lbs (10 523 kg). 4-81