89 MT 4x4 Grinding on coast or decel

[WizBang]

Put new CV's on both sides when I did the lift kit a few years ago since I knew the change in driveshaft angle would have likely stressed and split the old boots. Can't remember what brand but they were aftermarket. Nonetheless, even if they were a sub-standard Chinese product, considering the low mileage put on each year I'd be surprised if they had failed already.
The microphone will tell all...