Most of the jacks I have seen have "swedge" made into the unthreaded section of the rod so it will not back out. You have to grind that down to get the rod out. with the rod out the 2 steel washers and the one nylon washer should slid off the end. Once refinished you have to re swedge the rod,drill and put a pin in it, or install it and not do ether. Bob