Replacing my struts today and found this. The caliper in question is the RF. I apologize, the pictures aren't the best, but it looks and feels like the caliper pistons are crumbling. When I took the caliper off a bunch of rust powder fell out of the pistons. The bottom of the pistons feel like they are bulging outward and there is some deep looking cracks forming in the area where they are bulging. I looked at the other front caliper (which is brand new as of last week) and the pistons are flat, no bulging or anything. I'm worried that one day the pistons might bust open during braking. My gut is telling me to just replace it but I hate to replace a factory caliper because the re-man caliper on the LF recently froze after just one year and 10,000 miles. The only other thing I can think is that a few layers of rust are working loose, giving it this appearance but I hesitate to pick at it. Has anyone seen this before?
EDIT: Third picture is one I found on the internet, apparently from a Honda Element. Mine don't look quite as severe as that and they're not leaking fluid but it's a good pic of what I'm talking about.
Last edited by TheDailyDrive; 07-26-2014 at 05:46 PM..