20-02-17, 10:17 PM
When I rebuild my rear caliper I split it, then cleaned out the groves with a dremmel fitted with a 3mm brass circular brush. Very corroded from road salt. Replaced Pistons as they were pitted. New OEM seals and rubber grease. Brakes like new. Oh if you split caliper don't loose the small o ring!
Hope that helps
Hope that helps