it just started as i was leavin the bank, i heard a thump and i thought i ran over sumthin looked back and didnt see anything, so i kept driving and i kept hearin a thumpin sound comin from my rear end everytime i shift and under slight acceleration it vibrates. im thinkin its some kind of bushin i just cant see which set. it kinda sounds like a sturt but im lost i tried to search, but my search dosent work

 

Might be a differential mount but I don't know.

 

It's your front differential mount, and they commonly snap. I drove mine with a broken one for a few months, and it didn't tear anything up. And after looking at prices of new ones, I just welded it straight to the sub-frame. Many people do it, and it's cheap. Mine's still holding and I did it almost a year ago.