Ok so I've had this 93 gt for a month or so. When I got it it had some rear end issues. I didn't have time to fix its self which I don't have a lift anyway or some other tools needed. Anyway the axl shafts got replaced along with the bearings and a few other things. They said the pinion and carrier bearings were ok I think. I also had the brakes done and a throttle body service and cleaning. So now that I have it back I'm getting a whine on deceleration in pretty much all the gears. It totally goes away when i am giving it gas and from what I can tell it goes away when I push in the clutch and if it's in neutral. It's not like a terrible sound just kinda of annoying. What is going on????