GMC 2007 Sierra - Manual (Page 434)

C-1500 Regular Cab
Long Box (2WD)*
Axle Ratio Maximum Trailer Weight GCWR
4800 V8
3.23
3.73 6,200 lbs (2 812 kg)
7,200 lbs (3 266 kg) 11,000 lbs (4 994 kg)
12,000 lbs (5 448 kg)
5300 V8
3.23
3.73 7,200 lbs (3 266 kg)
8,200 lbs (3 719 kg) 12,000 lbs (5 448 kg)
13,000 lbs (5 902 kg)
*Fifth-wheel or gooseneck kingpin weight 15 percent to 25 percent of trailer weight up to 1,500 lbs (680 kg)
maximum.
C-1500 Extended Cab
Long Box (2WD)*
Axle Ratio Maximum Trailer Weight GCWR
4800 V8
3.23
3.73 5,800 lbs (2 631 kg)
6,800 lbs (3 084 kg) 11,000 lbs (4 994 kg)
12,000 lbs (5 448 kg)
5300 V8
3.42
3.73 6,800 lbs (3 084 kg)
7,800 lbs (3 538 kg) 12,000 lbs (5 448 kg)
13,000 lbs (5 902 kg)
*Fifth-wheel or gooseneck kingpin weight 15 percent to 25 percent of trailer weight up to 1,500 lbs (680 kg)
maximum.
*Fifth-wheel or gooseneck trailer rating limited to 7,600 lbs (3 447 kg).
K-1500 Regular Cab
Standard Box (4WD)*
Axle Ratio Maximum Trailer Weight GCWR
4300 V6 (Auto) 3.73 5,100 lbs (2 313 kg) 10,000 lbs (4 540 kg)
4300 V6 (Manual) 3.73 4,100 lbs (1 860 kg) 9,000 lbs (4 086 kg)
4800 V8
3.42
3.73
4.10 7,100 lbs (3 221 kg)
7,100 lbs (3 221 kg)
8,100 lbs (3 674 kg) 12,000 lbs (5 448 kg)
12,000 lbs (5 448 kg)
13,000 lbs (5 902 kg)
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