Join Date: Jan 2014
Location: South Central PA
The square cut seal rings are what pull the pistons back when you release the pressure on the brake. And you could have a bad hose on that side. If opening the bleeder releases the drag, its the hose.
Past that we need to know what you are working on.
On the multi-piston calipers, drab is piston related or, the pad binding in the caliper.
On the single piston caliper, it can be the piston, but is more often the slider bushings the caliper moves back and forth on.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.