hey everyone here is my dilemma. last week i did a massive fishtail around a corner. next day i heard a loud "clunk" coming from the rear of the car. it feels like the rear end is moving every time it clunks.. I took it to get checked out. the Mechanic said " its either the axle or the gears inside are jacked up" My question is should i just get the rear end repaired or should i buy a whole new rear end?.... *** cause i think the rear right tire was hit in an accident *** what rear ends are compatible with a 90 ford mustang and i wanted to keep my 3.73 gears from my old rear end. Thanks everyone!