ok so my right rear caliper is froze open. do i need a new caliper in general even if the pistion is froze or can you bleed the lines and grease it and what not?

 

Used calipers can be found really cheap. You can also get caliper rebuild kits for fairly cheap too from the Dealer. If it where me, I would just find a used caliper and save the time and effort of a rebuild.

 

Yea dont even waste time doing the flushing of the lines and what not, calipers r cheap and easy to install.