Assistance Needed - Restoration Question

[Coach K]

I have recently purchased a '77 630 csi that is in pretty good shape and the plan is to restore it. I ran across an '85 635 csi that I was going to use for parts. Since the body style on both cars are similiar I was thinking that the fitment of the parts should not be a problem... For example, I was going to use the bumpers from the '85 and place them on the '77. Will any modifications be need or will the '85 bumpers simply line up and bolt on?

This is my first restoration so any advice will be helpful.

[joshtimber81]

You cannot simply change the parts of any model with any other. It will create problem while assembling.