JMortensen Posted March 1, 2021 Share Posted March 1, 2021 I had a lot of runout when I first bolted them up, I shimmed it straight with .002" washers between the hat and rotor. Now there is more runout. One side is straight the other is about .020" out, thinking about cutting the rotor. We talked about that here 10 years ago or so and determined shimming was the right way to do it, but cutting sure seems easier. Shimming was a PITA. And yeah, my friend is able to make a Fox body Mustang legitimately fast, so he's doing something right. Between him and Cary (tube80z) you can get a ton of good info. Quote Link to comment Share on other sites More sharing options...
clarkspeed Posted March 1, 2021 Share Posted March 1, 2021 I always keep a few shims in the tool box to correct brake run out. It has always worked for me, but I use the stock hubs also. Quote Link to comment Share on other sites More sharing options...
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