GMC 2006 Sierra 1500 Pickup Owner's Manual page 393

Vehicle*
K-3500 Extended Cab (4WD)*
6000 V8 Dual Rear
Wheel
6000 V8 Single Rear
Wheel
8100 V8 Dual Rear
Wheel
8100 V8 Single Rear
Wheel
6.6L V8 Diesel Dual
Rear Wheel (Manual)
6.6L V8 Diesel Dual
Rear Wheel (Auto)
6.6L V8 Diesel Single
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).
Axle Ratio Maximum Trailer Weight
4.10 9,400 lbs (4 264 kg)
4.10 9,600 lbs (4 354 kg)
4.10 15,000 lbs (6 804 kg)
4.10 15,000 lbs (6 804 kg)
3.73 16,300 lbs (7 394 kg)
3.73 16,300 lbs (7 394 kg)
3.73 15,000 lbs (6 804 kg)
GCWR
16,000 lbs (7 257 kg)
16,000 lbs (7 257 kg)
22,000 lbs (9 979 kg)
22,000 lbs (9 979 kg)
23,500 lbs (10 659 kg)
23,500 lbs (10 659 kg)
22,000 lbs (9 979 kg)
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