hi all , sorry if this has been talked about before but I need some help. Ive only had old fords ,xr, xw ,XB coupe ect but now I have an XR6 turbo 2002 with 65300ks on the clock and after a couple of months of hard driving there is some serious grinding noise coming from, Im guessing the diff. It only happens when I lift the go peddal. no issues when accelerating. any ideas would be really helpfull