I have a 2000 jeep cherokee, it has been making this strange rubbing or scraping noise that seems to be coming from the front end. i initally though that it was the front wheel bearings, but i changed both of the front hub assemblies, and it still makes the same sound. i'm no mechanic, but i try to do what i can, i would appreciate and suggestions. my only guess is that the rotors my be rubing aginst the heat sheild for the rotor but i'm not sure.