GMC Sierra Classic 2007 Owner's Manual page 434

K-2500 Extended Cab
Standard Box HD
(4WD)*
6000 V8
8100 V8
6.6L V8 Diesel
*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 Crew Cab
Standard Box HD
(4WD)*
6000 V8
8100 V8
6.6L V8 Diesel
*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)*
6000 V8
8100 V8
434
Axle Ratio Maximum Trailer Weight
4.10 10,000 lbs (4 536 kg)
3.73 13,600 lbs (6 169 kg)
4.10 15,600 lbs (7 076 kg)
3.73 15,400 lbs (6 985 kg)
Axle Ratio Maximum Trailer Weight
4.10 9,800 lbs (4 445 kg)
3.73 13,300 lbs (6 033 kg)
4.10 15,300 lbs (6 940 kg)
3.73 14,200 lbs (6 441 kg)
Maximum Trailer Weight
Axle Ratio
4.10 10,300 lbs (4 672 kg)
3.73 13,800 lbs (6 260 kg)
4.10 15,800 lbs (7 167 kg)
GCWR
16,000 lbs (7 257 kg)
20,000 lbs (9 072 kg)
22,000 lbs (9 979 kg)
22,000 lbs (9 979 kg)
GCWR
16,000 lbs (7 257 kg)
20,000 lbs (9 072 kg)
22,000 lbs (9 979 kg)
22,000 lbs (9 979 kg)
GCWR
16,000 lbs (7 257 kg)
20,000 lbs (9 072 kg)
22,000 lbs (9 979 kg)