Hey all, looking for some help. Looking at buying a 2003 Mustang GT (RIP to my 1994 GT). Test drove it last night, really liked the car overall, brand new clutch and the works. Only main concern; when driving it, my buddy and I heard what sounded like either a dragging, or rubbing noise coming from the back passenger side wheel area. Could have been a grinding but didn't sound too much like one. Worth mentioning, the brake rotor on that side was warped, while the other side was smooth. I wondered about a caliper drag, the seller wondered about an axle bearing. Not sure on either, which one makes more sense? Dad wondered if the whole rear end was going out, could that be a possibility as well? Thanks!