I've got this wierd grinding noise whenever I'm coming to a stop or crusing really slow or in reverse when the clutch is engaged (when the engine is compression braking). Less of a grind than a metal on metal rubbing noise. I thought it was a u-joint grinding my muffler but there's no marks on it. It only "grinds" if the clutch is engaged, when I push it in the noise stops, but when it's out it grinds, even with the truck in neutral. Is one of the shafts or gears in my tranny bad? Or is it in the clutch? Wish I knew more about diagnosing manual transmissions On a positive note I got my lift installed this weekend (the noise was there before the lift so I doubt they're related) Thanks!