That is the kit that uses 65-66 4 piston calipers and rotors on 69 spindle, right? I just installed a kit like that on my 69 and one point on my 14" factory steel wheels scraped the caliper. Nothing hit the hard line on the caliper. I shaved the area on the rim that scraped. Can you bend the line a little and eliminate the rubbing? If you were looking for an excuse for new wheels, never mind my suggestion.