I swapped my axles last month 10b to 14b ff in the rear( the 14 bolt had been out of service a couple years) and have had some minor brake problems and some other stuff but nothing major. I decided to go with the disc brake swap in the rear so I've been gathering parts ...then out of the blue i picked up this heavy vibration and alot of clanking in the rear. I am just looking for a quick way to check the bearings before i put all my new brake stuff on the rear. I suspect either the bearings are shot or them big drum brakes fell apart(which wouldnt bother me at all lol). I guess the easiest thing to do is pull the cover off the rear to start my disc swap and hope there isnt chunks of metal in there.