hi. discovered a leak at the rear brake caliper. looks like its coming from the pin that connects the parking brake cable to the caliper assembly. i have removed the cable and spring and the pin moves up and down and leaks when i move it. i see a rubber gasket and pin looks corroded. my question is how do i remove that pin? it swings back and forth but there is another pin that acts as a stop for the cable . this pin prevents the assembly to be fully removed . anyone understand what im trying to explain?