Bringing back an old thread. Doing some research and found this. I am actually planning on doing this to my 86 project. Wanting to keep it at around 4" of lift. Stock MJ springs are shot and drivers side is broke. Swapping a XJ Chrysler 8.25 in but didn't want the almost 5-6" lift that is said to be gained by doing so with stock MJ springs. If my figures are correct it should only give about 1-2" of lift over the factory setup on the MJ. Going to pick up Ranger leafs tomorrow will post more when axle is in