GMC Sierra 2015 Owner's Manual page 343

9-76 Driving and Operating
Vehicle
1500 Series 2WD Regular Cab Long Box
4.3L V6 (b)
5.3L V8
5.3L V8
1500 Series 4WD Regular Cab Standard Box
4.3L V6 (b)
5.3L V8
5.3L V8
1500 Series 4WD Double Cab Standard Box
4.3L V6 (b)
5.3L V8
5.3L V8
5.3L V8
6.2L V8
6.2L V8
Maximum Trailer
Axle Ratio
3.23 2 676 kg (5,900 lb)
3.08 3 085 kg (6,800 lb)
3.42 4 445 kg (9,800 lb)
3.42 3 447 kg (7,600 lb)
3.08 3 039 kg (6,700 lb)
3.42 3 946 kg (8,700 lb)
3.42 3 266 kg (7,200 lb)
3.08 2 812 kg (6,200 lb)
3.42 4 173 kg (9,200 lb)
3.73 4 990 kg (11,000 lb)
3.23 4 173 kg (9,200 lb)
3.42 5 398 kg (11,900 lb)
Weight (c) GCWR (a)
4 990 kg (11,000 lb)
5 443 kg (12,000 lb)
6 804 kg (15,000 lb)
5 806 kg (12,800 lb)
5 443 kg (12,000 lb)
6 350 kg (14,000 lb)
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)