RE: Differential Problem...
on my bros st when you start the car up only 1 wheel spins and when the engine is of and you spin one wheel and the other one doesnt spin either. so i gues thats normal. like on my rusty i have a different type of diff then his. so i would just rplace the gears. they cost like 5 bucks. i stripped mine before so i replaced them and they still work fine