I needed some kind of brakes on my Willys build. Heres what I came up with. I punched some 7/16” discs from some .030” aluminum I have for the rotors. I punched some 7/16” id. X 9/16” od. rings to use as a spacer. Some 9/16” od. X 5/16” id. rings to use for the outer sections of the callipers. I used some .015” styrene sheet to make the bracket.