Rear brakes on 8 1/4 to 8 3/4 axle?

You'll run into trouble with the drums, cause of the different lug pattern in the back. If I'm not mistaken. If you upgrade to the big pattern axle with the big brake spacing then it work. I've done it. Then turned around and put a rear disk brakes off of an 96 Grand Cherokee. This took a little machining on the caliper bracket, but not much. I hope this helps.

Lee