The rear drum/hub assembly is fitted to the tapered axle with a square key. To separate the drum/hub you'll need a hub puller. Your local auto parts store may have one in their "loan a tool" program. But be sure you tell them you have a tapered axle (Chrysler products also used these), or I used to rent one from a regular rental equipment place. I've heard of guys jacking up the opposite side of the car with a floor jack (so it can move a bit) and leaving the side being worked on with the tire and wheel on and on the ground (with the full weight on it), then loosening the axle nut to be flush with the end of the axle and beating on it. That may be what happened to yours. The hub will really be tight and you'll think it's never gonna come off but just keep tightening the puller (maybe over a period of days). Also be sure the threads on the puller and where the puller presses on the axle are lubricated. Oh, and if you can, leave the axle nut threaded on, just a couple of threads loosened, because when it comes off it'll come off with some force. As for the nut, depending on how much of the axle was cut off, you might be able to find a "not as tall" castlelatted nut. Good luck.
Posted on Jun 16, 2012, 8:28 AM from IP address 220.127.116.11