PRICE DROP---6,000 O.B.O.

I was driving the truck 2 days ago and the rear driveshaft started vibrating like crazy so i have just parked it for now. I don't really know whats wrong with it but it is still driveable, i just wouldn't recomend it over 30 mph or so. Price is 6,000 obo i need to get rid of it so ill entertain all offers.