Posi rear end

[Grajuiceki]

I want to convert my rear end to posi has anyone done this befor or can tell me where i can get gears or if i have to buy a new rear?

 

[dsberman94]

Trutrac or I believe the no slip is what it's called.

 

[lightning95]

http://powerstrokearmy.com/forums/showthread.php?t=44281&highlight=true+trac
It's all you need to know right here.