So I've just purchased a 2v today extremely happy been wanting this body style Mustang for a while now... As far as I'm aware the car is stock besides a k&n CAI, ST Shifter, and a Upgraded clutch. The car seems pretty solid except for one thing. Now when I shift through the gears the whole drive train seems to move like something is loose up under the car. I haven't had the chance to jack the car up to see what it possibly was even if I wanted to I couldn't being on a military base. But I know alot about mustangs in general the early model fox bodies but this is my first 4.6 so I wanted to here from the guys that know most about them before i get to tightening and loosing bolts. As i said before it happens when i shift the whole drive train seems to shift like from the trans back to the rear end making the car jumpy and twitchy when decelerating and like the trans is about to fallout the car when accelerating.. PLEASE HELP ME OUT HERE.!