Hi all. I have a Frankenstein Truck. It's a 1954 Ford Body, Chevy 350 motor and a MOPAR front end. In trying to replace the brake system I have discovered that the pads are from a 1974 Roadrunner, the rotors are from a 1975 Coronet, I am coming up empty on the origin of the caliper. The numbers on the caliper include 4126, 508, 807 and G445A or perhaps 6445A it's rather worn. Single piston. I cannot figure out how to link a picture to this post. Everything we have tried to match up to date will not work. Any advice/insight is appreciated. Thanks!