This is the front axle, I rebuilt it and armored the front while I was waiting to get the truck. It got all new bearings and an aussie locker. I kept the 4:10s because I still don't know what kind of motor I'm going to use. I used the rear springs with a couple of leafs out of the rear of an early bronco trimmed to fit. The early trucks had the body mounts enclosed on the bottom so I had to mount the rear spring hanger under the frame. I used a stock rear hanger from the rear spring.