Quote:
Originally Posted by s1ngletracker
Its interesting that shims could make such a difference... isn't it just a really thin piece of metal?
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Yup, its a thin piece of stainless steel. The stock shims only cover about half the pad though and I think it was affecting how the piston was contacting the pad. Everything I'm reading and everyone I'm talking to (track guys) agrees that stock shims should not be used on aftermarket pads, and even aftermarket shims will lead to a softer/less-direct pedal feel so they should only be use if you can't get the pads to stop squealing and/or you're boiling brake fluid.