Today I took the K5 for a spin and noticed it pulling to one side, I flipped around towards home because I figured a rear drum was hanging up. When I got home it was a brake but it was the passanger front disk and it was smoking a little. Is there anything I can do to get it to unstick itself and quit hanging up? My dad mentioned it is probably gotten rusty from all the mud and water that has been all over it all winter, and from the lack of driving it. I have the tire and wheel off, is there anything I can do?