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I put the 80 rear bumper on my 77 with no problems. I did have to remove a couple of parts to make it fit. I'm not sure of the name of them but are 'V' shaped with a rubber strip on them, probably for keeping the bumper in proper shape. Also had to drill 1 bolt hole to hold the bottom of bumper to cross member. I used 80 rear lights as I couldn't figure out how to use the originals but I have seen them used on other cars.