Arno, My experience with the 69 Repops were the same as you describe. I had to do a bit of shimming for the bumper to have an even amount of space between bumper and tail panel. The front was another disappointment. I ended up taking it back and getting another that fit a bit better. Now after being on for two years the danged chrome is flaking on the front bumper

I saved my originals and will take them to Bumper Boyz and have them refurbished. Dutch....Check out bumper boyz on the Net bumperboyz.com They are in L.A. But do travel to car shows throughout the U.S. You also mail your bumpers to them if thats what you want.
John