i have a 2003 g35 coupe manual and every time am racing the car off the hole it always goes to the left i think that the differential only pulls from one side vs the 2007 model have dual rear end pulls can anyone help me on what mod it is needed and how much plz need some help on that .I think it only pulls from one side am not sure .

 

well a posi unit will make both wheels spin the same. if your car is going left or right off the line, it has alot to do with load transfer weight transfer, and steering input. would need to know more of exactly what your talking about to better inform you

 

ok what a friend of mine was telling me is i don't know if u guys have seen the ford f150 stuck in mud and instead of both wheels spinning 1 side only spins thats what am talking about my friend told me that the g35 from my year only only spins on one side

 

ok so when you hit the gas one tire spins and the other does nothing, thats called an open diff. you need a limited slip setup. they have them for the cars... check around a bit. i know you can find a totaled g or z with a limited slip differential in it and get a good deal.

 

Are you talking about traction control because that shifts power to the wheel with more traction if it detects loss of traction...