GMC Sierra 2015 Owner's Manual page 345

9-78 Driving and Operating
Vehicle
1500 Series 4WD Regular Cab Long Box
4.3L V6 (b)
5.3L V8
5.3L V8
2500 Series 2WD Double Cab Standard Box
6.0L V8
6.0L V8 Conventional Trailer
6.0L V8 Fifth-Wheel Trailer
2500 Series 2WD Crew Cab Standard Box
6.0L V8
6.0L V8 Conventional Trailer
6.0L V8 Fifth-Wheel Trailer
2500 Series 2WD Regular Cab Long Box
6.0L V8
6.0L V8 Conventional Trailer
6.0L V8 Fifth-Wheel Trailer
Maximum Trailer
Axle Ratio
3.42 3 357 kg (7,400 lb)
3.08 2 948 kg (6,500 lb)
3.42 4 309 kg (9,500 lb)
3.73 4 536 kg (10,000 lb)
4.10 5 897 kg (13,000 lb)
4.10 6 577 kg (14,500 lb)
3.73 4 445 kg (9,800 lb)
4.10 5 897 kg (13,000 lb)
4.10 6 486 kg (14,300 lb)
3.73 4 672 kg (10,300 lb)
4.10 5 897 kg (13,000 lb)
4.10 6 713 kg (14,800 lb)
Weight (c) GCWR (a)
5 806 kg (12,800 lb)
5 443 kg (12,000 lb)
6 804 kg (15,000 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)
9 299 kg (20,500 lb)
7 257 kg (16,000 lb)
9 299 kg (20,500 lb)
9 299 kg (20,500 lb)