[bry593]

I should mention that I had to run 1/4" spacers to fit my old school 16x6.5 GM wheels. The calipers hit on the side of the center drop of the rim. I also used 1/4" longer wheel studs from the front hub of 80's model Chevy 1 ton to provide sufficient thread engagement to lug nuts.

After trying a Ford 16x7 (90's issue), I found the same problem. Later model GM wheels are designed differently in this area and would not require spacers. For example the 16x6.5 2500HD aluminum wheels should bolt right on.