Caliper help Options

[cheela]

guys, how hard is it to rebuild a caliper? anyone have a how to? or is this a take it to the shop thing? I have an ST. I just found out that my right brake disc was being scratched up like crazy. I had this problem before. Same side, changed the disc cuz I thought maybe the pads just wore out faster and ate it up. but now, it's been a year and my disc is eaten up again.

Now, I just bought some ATE performance slotted rotors but I don't wanna put them on if they're gonna get eaten up. Me and my dad did a temporary set up on it right now with some pads from autozone just to ride around for now. He took apart the caliper cuz it seemed be not releasing so after that it worked fine, but now i'm hearing it scratch again? it sounds like metal scraping metal. I'll have to check if one of the shims fell loose or something but I hope it's not something big.