Been looking for an answer to the 3-point belt mounting location for my 64 SS and found this.

http://www.wescoperformance.com/retr...r-mt-door.html

Best thing I have seen so far, anybody have experience with these?

I don't have any experience with them, but it looks like a good, well engineered product. The mounting bracket looks a lot better than the Juliano or Andover stuff. Try it out & let us know how it worked!
BillL