Im actually rebuilding mine at work during my lunch break. Its a pain to get the old gold finish to clean up well. I did use some of the shops detail supplies to get it relatively clean. Separated the calipers to replace all the seals, pretty easy and straight forward. I just wish I had the specific seal lubricant for the piston seals, brake fluid just does not help sliding the pistons back in easier.I'm not satisfied with the front brake callipers, despite cleaning, the bolts that hold the calliper halves together are rusty and thats bugging me…a lot, my OCD cant deal with that. I may have to swap the callipers out or buy new bolts and rebuild these ones.