If you were able to reuse the original rear window bottom corner pieces, they must have fit. I have heard about the '72 Chev pickup lock strip fitting, but it may be different from what is sold now. Having written that, the OER package my replacement strips came in states " '63-'91 windshield lockstrip". The lockstrip comes with a metal cover for the bottom of the windshield, but nothing for the rear except the same as the front, which is not useable in the rear.