GMC 2015 Sierra Denali Owner's Manual page 254

Vehicle
6.0L V8 Conventional Trailer
6.0L V8 Fifth-Wheel Trailer
3500 Series 4WD Crew Cab Long Box
6.0L V8 (Single Rear Wheels)
6.0L V8 (Single Rear Wheels)
Conventional Trailer
6.0L V8 (Single Rear Wheels)
Fifth-Wheel Trailer
6.0L V8 (Dual Rear Wheels)
6.0L V8 (Dual Rear Wheels)
(a) 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 the vehicle should not be
exceeded.
(b) This model is neither designed nor intended to tow fifth-wheel or gooseneck trailers.
Ask your dealer for trailering information or advice.
Axle Ratio Maximum Trailer Weight
4.10 5 897 kg (13,000 lb)
4.10 6 305 kg (13,900 lb)
3.73 4 173 kg (9,200 lb)
4.10 5 897 kg (13,000 lb)
4.10 6 214 kg (13,700 lb)
3.73 3 992 kg (8,800 lb)
4.10 6 033 kg (13,300 lb)
Driving and Operating
GCWR (a)
9 299 kg (20,500 lb)
9 299 kg (20,500 lb)
7 257 kg (16,000 lb)
9 299 kg (20,500 lb)
9 299 kg (20,500 lb)
7 257 kg (16,000 lb)
9 299 kg (20,500 lb)
9-75