Your asking a lot out of this posi. Street, Crusin, and strip? In that case i would lean towards the Eaton. I think their rated at more torque, and they do(or used to) have a warentee. However, if it was me, i would bolt a ARB air locker in there. That way, you can open it up for street/crusin use and save tires and fuel. But thats me.