The most commonly used roter on a stock spindle disk brake conversion uses a roter that came off cars that used 14 inch wheels. The 68-74 Nova, 68-72 Chevelle and 69 Camaro all rode on 14 inch rubber with the exception of special models for example Z28. THe only issue will be the use of the 14x5 wheel not designed for disk. The aforementioned cars all came with 14x6 disk brake wheels.
my brake kit allowed the caliper to be mounted front or aft.
The 69-72 kits move the wheels out some nearly 7/8's.
MY kit kept the wheels in the stock position.
Yes, they're smaller calipers but I don't plan on rallying my 57 convert.
tom's on e bay, fit perfect on my 57, just switch right caliper to left side and left side to right side, the lines will fit great to. you have to grind a little bit off the bottom of caliper so it doe's not hit control arm, easy job and they work great.
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