Sticking caliper question

[Beau]

My RR pad on my S13 wore down MUCH faster than the rest of the pads. I didn't realize they were wearing unevenly until I heard the grinding sound coming from that wheel. So the disk is trashed, but that's ok because I have a replacement sitting in the corner getting dusty. Anyway, now that it's grinding I have noticed that it still grinds after I have let off of the brake, as if it's not retracting enough or at all. Is this caliper fixable, or does it just have to be bled? I don't know much about caliper operation obviously.

[Hijacker]

the piston is jammed, so it will either need to be rebuilt or replaced. You can get a rebuild kit from an auto parts store and it'll include all the seals you'll need to replace. If you have a Chiltons or a Haynes manual, it goes through the process of rebuilding calipers. But if you wanna save yourself the hassle, most auto parts stores offer rebuilt calipers and you get a discount for trading in your old one.

[IvoryJ30t]

if the piston side is wearing faster than the outboard side, then you may just need new caliper slide pins, and not the entire caliper.

[navysnail]

ya, that happened on mine and my neighbors prelude, replaced slide pins, synthetic brake caliper greased them up, never had to do anything else since.

[navysnail]

wait, are both RR pads worn out or just one? if both, then caliper is sticking so do what tenkawa_akito said.