I used an axle from a 1990 Ranger Super Cab 4X4. It is 56 5/8 wide at wheel mounting surface. There is a time soon after that the axle got wider, so be careful what you buy. Also, the four cylinder Ranger and some 3 L V6 had smaller brakes. Again be careful what you buy. The Super Cab big V6 4X4 meant it was a 3.73 traction loc. I used a torch to cut the spring mount off the top, and a stick welder to put new ones on the bottom. I warped the housing doing this. If anyone needs to know how to fix that, send a PM and I'll write it out. It was done here at home.