1991 gmc sonoma gear ratio?

[Jacob]

what gear ratio/final drive is my 1991 gmc sonoma reg cab short bed 2wd 2.5l 4 cyl 5 speed manual truck

 

[Molson02536]

what gear ratio/final drive is my 1991 gmc sonoma reg cab short bed 2wd 2.5l 4 cyl 5 speed manual truck

look in the glovebox at the RPO codes.

GU2 2:73 ratio

GU4 3: 08 ratio

GU5 3:23 ratio

GU6 3:42 ratio

GT4 3:73 ratio

GT5 4:10 ratio

GQ1 Open Differential Rear Axle

G80 Positraction/Locking Rear Axle

Take the VIN number that is on your vehicle title to the local dealership and ask them what gear ratio is in your rear end, or you can also look on the rear end. It will be on the passenger side axle-housing just inside the leaf spring perch on the front side.