GMC 2015 Sierra Owner's Manual page 340

Vehicle
1500 Series 4WD Crew Cab Short Box (b)
4.3L V6
5.3L V8
5.3L V8
5.3L V8
6.2L V8
6.2L V8
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
Maximum Trailer
Axle Ratio
3.42 3 221 kg (7,100 lb)
3.08 2 812 kg (6,200 lb)
3.42 4 173 kg (9,200 lb)
3.73 4 944 kg (10,900 lb)
3.23 4 173 kg (9,200 lb)
3.42 5 353 kg (11,800 lb)
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)
Driving and Operating
Weight (c)
9-77
GCWR (a)
5 806 kg (12,800 lb)
5 443 kg (12,000 lb)
6 804 kg (15,000 lb)
7 575 kg (16,700 lb)
6 804 kg (15,000 lb)
8 029 kg (17,700 lb)
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)