GMC Sierra 2018 Owner's Manual page 311

310 Driving and Operating
1500/2500/3500 Series Pickups
Vehicle
3500 Series 4WD Crew Cab Standard Box
6.0L V8
6.0L V8 Conventional Trailer
6.0L V8 Fifth-Wheel Trailer
3500 Series 4WD Double Cab Long Box
6.0L V8 (Single Rear Wheels)
6.0L V8 (Single Rear Wheels)
6.0L V8 (Dual Rear Wheels)
6.0L V8 (Dual Rear Wheels)
3500 Series 4WD Crew Cab Long Box
6.0L V8 (Single Rear Wheels)
6.0L V8 (Single Rear Wheels)
Conventional Trailer
6.0L V8 (Dual Rear Wheels)
6.0L V8 (Dual Rear Wheels)
3600 Series Chassis Cab 2WD/4WD
6.0L V8
SAE J2807 Compliant
Axle Ratio
3.73
4.10
4.10
3.73
4.10
3.73
4.10
3.73
4.10
3.73
4.10
3.73
Maximum Trailer
Weight (c)
4 264 kg (9,400 lb)
5 897 kg (13,000 lb)
6 305 kg (13,900 lb)
4 264 kg (9,400 lb)
6 305 kg (13,900 lb)
4 082 kg (9,000 lb)
6 123 kg (13,500 lb)
4 173 kg (9,200 lb)
6 214 kg (13,700 lb)
3 992 kg (8,800 lb)
6 033 kg (13,300 lb)
(d)
GCWR (a)
7 530 kg (16,600 lb)
9 571 kg (21,100 lb)
9 571 kg (21,100 lb)
7 530 kg (16,600 lb)
9 571 kg (21,100 lb)
7 530 kg (16,600 lb)
9 571 kg (21,100 lb)
7 530 kg (16,600 lb)
9 571 kg (21,100 lb)
7 530 kg (16,600 lb)
9 571 kg (21,100 lb)
7 530 kg (16,600 lb)