I have a terible grinding noise when I release the accelerator pedal at highway speeds. It only seems to do it when I'm free wheeling and seems to go away if i push the clutch pedal in or shift to neutral. Any suggestions would be a big help thanks allot oh I have 79,000 miles at this point.

 

throwout bearing? Maybe drive shaft carrier bearing.
just my .02c

 

Thanks for the help sounds like the throw out bearing fixing this weekend thanks again.