Hi and thanks in advance. Any one do a disc brake and booster conversion on a 57 or 58 olds ? Any companies out here who handle kits?
try Scarebird for disc brake brackets. you will probably be on your own for the booster/master. I swapped one on one of my old 60 Olds and it was pretty easy. Drilled the firewall, had to extend the master push rod, and drill the pedal to accept my clevis. Took the union out from the stock lines and put an adjustable regulator on the backs.
If those big ***ed drums won't stop it nothing you are going to buy short of oversized discs and multiple pistons is going to help. LOL Like papajohn says try scarebird. Keep it in the family.