I know on the 60 to 62 chevy they say that they will not work on a repo bumper they must be put on an original bumper to fit properly, I don't know about the fitment on the 63 to 66 sense they have a different bumper on them. I hope this will help you even thew that is not what year truck you have.
Bob
Last edited by wojo; 02/15/2010 6:20 AM.
