I've noticed that my right rear caliper is leaking... very bad. I have to refill the resevoir every two days or so. Pedal feel is mushy and goes all the way to the floor. I checked the caliper and noticed the spring bolt that's connected to the parking brake is very loose and there is no way to tighten it down. I even hear a pop every now and then when i apply the parking break. is this item rebuildable or am i stuck with buying a new caliper. any help is appreciated thanks.

 

Just get a new one. The "new" caliper will likely be rebuilt anyway. It's not worth the time and trouble to rebuild it yourself, unless you consider your time worthless and have no money.

 

I had the same problem, bought a refurbished one from an auto parts store for less than $80, traded in my old one. If you decide to get a rebuilt one from an auto parts store, bring your old one at the same time to make sure it's the right one; I had to go back because they gave me one for, well I don't know but it didn't fit (looked very similar though).