firehawknwv Posted June 11, 2010 Report Share Posted June 11, 2010 Royal Purple FTW Quote Link to comment Share on other sites More sharing options...
angels05ss Posted June 13, 2010 Report Share Posted June 13, 2010 What about Lucas brand gear oil....SAE 80W-90??? I drove to all the auto parts stores and none of the 3 I went to had any mobil 1 in stock. Quote Link to comment Share on other sites More sharing options...
T-Bag Posted June 13, 2010 Report Share Posted June 13, 2010 From my understanding, I believe the front diff on an AWD only requires a standard 90w gear oil since its not a posi or locker. The rear needs a 75w-90w fully synthetic without an additive. I am running Royal Purple as well throughout. motor, trans, diff, power steering and RP radiator additive. If I'm wrong please correct me guys..... -Aaron Quote Link to comment Share on other sites More sharing options...
Nscott Posted June 18, 2010 Author Report Share Posted June 18, 2010 Did mine the other day, came out nice! very easy to do, but damn that royal purp gear oil is dough!! I know it's worth it though Quote Link to comment Share on other sites More sharing options...
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