Clutch making grinding noise
 

im confused... when i let the clutch out ot sounds like it is grinding but its only when im slowing down or backing up. my buddy said it might be a u-joint or somethin... :scratch: it started doing it after i drove it from san rafael CA to fallon NV its about 270 miles... the guy i bought it from claims to have changed the clutch and flywheel last summer (2008) and he even gave me the old clutch and flywheel... i know that this is somethin you gotta hear for yourself but if anybody knows anything that will help its appreciated thanks.