ok my car has been running pretty slow lately raced a dude i used to beat by 2-3 cars and now he is beating me by 2-3 cars and all he did was remove his cat well i did a burn out and my brother told me only the right tire was spinning i know both of them should be spinning so is the posi or whatever it is called in the stock rearend broke and if it is how can i fix this or how can i really tell if it broken or not my car is throwin some torque converter code switch b bullshit will that effect that possibly i need some help car is really pissin me off ever since i put the longtubes in nothing but downhill

 

Just powerbrake it and it will either leave one or two marks if only leaves one time for a new posi!

 

If one is spinning, the clutches inside the factroy Auburn are gone.. mine did the same, so I got a new one. I got the Pro Series, $503 with the complete Shim kit.