GMC 2003 Sonoma Owner's Manual page 256

Vehicle*
2WD Regular Cab
2.2L L4/Manual Trans.
2.2L L4/Auto. Trans.
4.3L V6/Manual Trans.
4.3L V6/Auto. Trans. w/ZR2
2WD Extended Cab
2.2L L4/Manual Trans.
2.2L L4/Auto. Trans.
4.3L V6/Manual Trans.
4.3L V6/Auto. Trans
2WD Long Box
4.3L V6/Manual Trans.
4.3 L V6/Auto Trans.
4WD Extended Cab
4.3L V6/Manual Trans.
4.3 L V6/Manual Trans.
4-56
Maximum Trailer
Axle Ratio
3.73 1,600 lbs. (726 kg)
4.10 3,100 lbs. (1 406 kg)
3.08 3,900 lbs. (1 769 kg)
3.42 5,900 lbs. (2 676 kg)
4.10 2,000 lbs. (907 kg)
4.10 3,000 lbs. (1 362 kg)
3.08 3,800 lbs. (1 725 kg)
3.42 5,600 lbs. (2 540 kg)
3.08 3,900 lbs. (1 771 kg)
3.42 5,900 lbs. (2 679 kg)
3.42 4,000 lbs (1 816 kg)
3.73 4,200 lbs. (1 907 kg)
Weight
5,000 lbs. (2 268 kg)
6,500 lbs. (2 948 kg)
7,500 lbs. (3 402 kg)
9,500 lbs. (4 309 kg)
5,000 lbs. (2 268 kg)
6,500 lbs. (2 948 kg)
7,500 lbs. (3 402 kg)
9,500 lbs. (4 309 kg)
7,500 lbs. (3 402 kg)
9, 500 lbs. (4 309 kg)
8,000 lbs. (3 629 kg)
8,500 lbs. (3 856 kg)
GCWR**