I have an 88 IROC w/4 wheel discs. I have two problems. One is that there are two grommets that go in the caliper where the mounting bolts go. For some reason they are missing on one of the calipers. Therefore, the caliper moves slightly causing a high pitched squeaking noise when I hit bumps, etc. Another thing is, when I apply the brakes then let off I hear a click. I believe the sound is coming from the same wheel. Is this coming from the same problem? Thanks.

 

You can buy a bolt kit at you local parts strore that comes w/ those bushings and grommets. I got mine at carquest.