[kehstr]

The problem with just putting a posi, or some sort of locker in it with all of the power the truck will have, is the axle shafts. I've broke 2 of them just getting on it a little at a stop light with a worn out 350, and a 4 speed trans. So you need to at least put stronger axle shafts in it if you pull it apart, unless you want to bend some backing plates and brake parts with your axle shaft walking out on you.