Even though I could have bought a new one, I had my master cyl. sleeved with stainless steel. I also had a couple of the wheel cyls. sleeved also. I figured that in the long run I would have brakes cyls. that wouldn't wear out. I run silicone break fluid,(don't use silicone if you have a vac-brake booster). I also replaced all the rubber brake connect lines. I have also honed cyls. till they were "clean" and just put new rubbers in, not measuring the size...they still work, don't leak.
