[GeneBob]

Everyone has a opinion but concentrating on your vibrations; does your car shake? does the steering wheel shake? You may be chasing a front end issue. Do the brakes pulse during deceleration? The steel drums that came on Model A's are mostly junk by now. Cast iron drums behave much better and fade slower. You can find images to show the difference between steel and cast iron. If the cams were installed incorrectly in the rears, I would bet that all four corners should be looked at for proper assembly and operation. The cool thing about mechanical brakes is, you can actuate them with the drums off to verify operation. You cannot do this with hydraulics, at least not more than once. Even new cast iron drums will likely need to be trued up since different suppliers machine and ship them differently.