Just a quick question, I am in the process of trouble shooting a belt squeek on my 22R 81 celica. I know it's not a loose belt, i'm pretty sure its the main engine pulley and am just wondering how easy it is to replace and where I might be able to find a replacement (maybe I just need the bearing.. but still) there are a few 20R's and some EFI 22R's in the junk yard here, will those parts work or should I buy new. the pulley wobbles as the sound is emitted so i'm pretty sure this is right. I'm not driving the car at the moment so I have time to do whatever i need to. what things shoudl I try to fix this?