GMC Sierra 2005 Owner's Manual page 376

Vehicle*
K-3500 Crew 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 Single Rear
Wheel (Auto)
6.6L V8 Diesel Single Rear
Wheel (Manual)
6.6L V8 Diesel Dual Rear
Wheel (Auto)
6.6L V8 Diesel Dual Rear
Wheel (Manual)
*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.
The Gross Combination Weight Rating (GCWR) is the
total allowable weight of the completely loaded
vehicle and trailer including any passengers, cargo,
equipment and conversions. The GCWR for your vehicle
should not be exceeded.
You can ask your dealer for our trailering information or
advice, or you can write us at the address listed in
your Warranty and Owner Assistance Information
Booklet.
4-82
Axle Ratio Maximum Trailer Weight
4.10 9,100 lbs (4 128 kg)
4.10 9,400 lbs (4 264 kg)
4.10 12,000 lbs (5 443 kg)
4.10 12,000 lbs (5 443 kg)
3.73 12,000 lbs (5 443 kg)
3.73 12,000 lbs (5 443 kg)
3.73 12,000 lbs (5 443 kg)
3.73 12,000 lbs (5 443 kg)
In Canada, write to:
General Motors of Canada Limited
Customer Communications Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
GCWR
16,000 lbs (7 264 kg)
16,000 lbs (7 264 kg)
22,000 lbs (9 979 kg)
22,000 lbs (9 979 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)