Hello i went to put on my new rotors and pads and i found that the lower piston is frozen, i did get it to go back in but it wont come out again i tried a few times it dosent move at all. so can i get the caliper that i have now rebuilt? or do i have to get a new one? if so are the calipers from napa or auto zone the same as the factory caliper? what are my options? is there any way i can get it to be un frozen my self.. thanks alot, i want to get this done asap thanks in advance.

 

Piston or slider pin? Are you talking about the caliper pistons, or the slider pins that the bolts screw into?

 

caliper piston

 

Time for a new caliper.

Don't mess around with your brakes.