Eaton Posi Differential
Muscle cars, hot rods and mild off-road vehicles should look to Eaton's limited-slip differential for their traction answers. And the fact is, Eaton's Posi units are virtually bullet proof.
Eaton performance differentials standard warranty and limitations
What kind of oil should I use? Can I use synthetic? Do I need friction additive/modifier?
Manuals for Differentials