Truckstein
No if your rear is truley a locker you don't need the additive. Limmited slip as called chevy and ford, or posi traction as called by mopar, and has become the common discriptive name use cluches. where as alocker is a ratchet system.


The difference between men and boys is the price of their toys.
Grant from Roy, Washington
1956 6100 Chevy Dump Truck in the Gallery
1964 GMC Drump Truck in the Gallery
user
http://s1301.photobucket.com/user/56Taskforce/slideshow/