GMC Sierra 2008 Owner's Manual page 372

K-3500 Extended Cab
(4WD)*
6.0L V8
6.0L V8 (Dual Rear
Wheels)
*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.
*Trailer rating limited to 13,000 lbs (5 897 kg) with weight distributing hitch.
**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.
K-3500 Crew Cab
(4WD)*
6.0L V8
6.0L V8 (Dual Rear
Wheels)
*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.
*Trailer rating limited to 13,000 lbs (5 897 kg) with weight distributing hitch.
**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.
Ask your dealer/retailer for our trailering information or advice, or write us at our Customer Assistance Offices.
See Customer Assistance Offices on page 7-5 for more information.
4-70
Axle Ratio Maximum Trailer Weight
3.73 9,500 lbs (4 309 kg)
4.10 12,000 lbs (5 443 kg)
3.73 9,200 lbs (4 173 kg)
4.10 11,700 lbs (5 307 kg)
Axle Ratio Maximum Trailer Weight
3.73 9,300 lbs (4 218 kg)
4.10 11,800 lbs (5 352 kg)
3.73 9,100 lbs (4 128 kg)
4.10 11,600 lbs (5 262 kg)
GCWR**
16,000 lbs (7 257 kg)
18,500 lbs (8 391 kg)
16,000 lbs (7 257 kg)
18,500 lbs (8 391 kg)
GCWR**
16,000 lbs (7 257 kg)
18,500 lbs (8 391 kg)
16,000 lbs (7 257 kg)
18,500 lbs (8 391 kg)