i posted this quaestion a few months ago and nobody seemed to know, just thought i would let u guys know for future reference, for anyone in the same position as me.. YES INDEEDY, the rear bumpers froma 64 polara and a 65 coronet are exactly the same, i just bolted on a nice straight 64 polara rear bumper onto my 65 corone tand it went on without a hitch ( no pun intended LOL) even the 64 polara brackets bolted right up, couldnt have asked for anything simpler now u know neal zimmerman, eugene oregon