GMC 2007 Sierra - Manual (Page 440)

K-2500 Crew Cab
Standard Box HD (4WD)*
Axle Ratio Maximum Trailer Weight GCWR
6.6L V8 Diesel 3.73 14,200 lbs (6 441 kg) 22,000 lbs (9 979 kg)
*Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,000 lbs
(1 361 kg) maximum.
*Trailer rating limited to 12,000 lbs (5 443 kg) with weight distributing hitch.
K-2500 Regular Cab
Long Box HD (4WD)* Axle Ratio
Maximum Trailer Weight GCWR
6000 V8 4.10 10,300 lbs (4 672 kg) 16,000 lbs (7 257 kg)
8100 V8
3.73
4.10 13,800 lbs (6 260 kg)
15,800 lbs (7 167 kg) 20,000 lbs (9 072 kg)
22,000 lbs (9 979 kg)
6.6L V8 Diesel 3.73 15,600 lbs (7 076 kg) 22,000 lbs (9 979 kg)
*Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,000 lbs
(1 361 kg) maximum.
*Trailer rating limited to 12,000 lbs (5 443 kg) with weight distributing hitch.
K-2500 Extended Cab
Long Box HD (4WD)*
Axle Ratio Maximum Trailer Weight GCWR
6000 V8 4.10 9,900 lbs (4 490 kg) 16,000 lbs (7 257 kg)
8100 V8
3.73
4.10 13,400 lbs (6 078 kg)
15,400 lbs (6 985 kg) 20,000 lbs (9 072 kg)
22,000 lbs (9 979 kg)
6.6L V8 Diesel 3.73 14,800 lbs (6 713 kg) 22,000 lbs (9 979 kg)
*Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 3,000 lbs
(1 361 kg) maximum.
*Trailer rating limited to 12,000 lbs (5 443 kg) with weight distributing hitch.
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