The rear end in my '94 blazer has two broker teeth. Believe it or not, it still gets me down the road although with a lot of noise and some vibration. It is a GT4 3.73:1 four wheel drive. I have found numerous 3.73's out of older cars but how can you tell what will work in my blazer. On fleebay, there is a store that sells remans out of vans described as a GT4,3.73. Will that fit?

It is an opportune time to put in a limited slip if I can find one. Any and all advice would be appreciated.