Only by going 65-67 discs can you keep the spindles. I have everything to swap with the larger bearing spindles for around $650 + shipping. These are the 70-73 Mustang/Granada/Mav/Comet ones. Some of it, you can possibly get locally, so if you want the basic spindles, I can give you the list. Sandblasted spindles w/ dust shields are $100, Calipers are $35 each+$7 core charge. Everything else is just bolt-in and parts house.