I have quick question I replaced my driver side front caliper that got rid of the swaying to the left really bad after letting off the brakes. After doing that it started to do a very slow movement to the right after letting off the brakes. I took off the brakes pads on the right side I seen rust circle on one of the pads. Does that mean that piston is seized? I'm getting alignment check on Sunday to see if that is the problem. I know the rule of thumb is to replace the other caliper but I'm broke as hell doing one thing at a time thanks guys!