dose it have posi or is it only right wheel? may sound weird but i know nothing of new stangs...mabey they do for safty?

 

just the passenger side tire breaks loose. Some great limited slip differential options are the Ford Racing t-lok, the Auburn or the Detroit TrueTrac.

 

Volcom66,

Power is transferred from the engine through the transmission to the drive shaft and from there to the differential or rear end. Looking forward from the rear of the car the engine, transmission and drive shaft are rotating counter clockwise (CCW) when the car is going forward. The differential diverts this CCW rotation to the axles, wheels, and tires so they can push the car forward. This CCW rotation of the drive shaft tries to also rotate the rear end and axle housing in a CCW direction. This torque effect (torque referring to rotational force) causes the right side (passenger side) axle to lift, which reduces the right (passenger side) tires traction allowing it to spin. In a non-positive traction rear end, there is no compensation for this so you have only the tire with the least amount of traction (the right tire) spinning. The reason most cars are designed with non-posi rear ends is cost, but also because it saves wear on tires when cornering. When cornering the outside tire is moving at a different speed than the inside tire so with this type of rear end one freewheels and the other tire drives the car. A positive traction rear end compensates for this torque lift being designed so that if one tire loses traction, power is NOT dumped onto that tire, but transferred to the other tire.

Here's some more reading on differentials which you may find interesting. This site also has a wealth of info on engines, transmissions etc. so have fun.

http://auto.howstuffworks.com/differential.htm

 

^^ You so smart [sm=closed.gif]