If you talk to the reps they'll tell you to never run synthetics in your rear end. It's too slick.
A8. Clutch chatter occurs when the clutch cone engages and disengages rapidly in the differential case. It causes no damage and can be cured by using the correct oil and friction modifies. Clutch chatter is caused by the difference between the static (non-slipping) friction coefficient and the dynamic (slipping) friction coefficient. When the difference becomes too great, the clutch cone cycles between the two (sticking and slipping), which creates the noise. Friction modifiers bring the static and dynamic friction coefficients closer together to minimize chatter. Auburn recommends using Auburn limited-slip additive (#504102) with a high-quality non-synthetic 80W 90 hypoid ol
GL-5
This classification is also common and can be used in all axles, even in severe conditions. This oil provides the best overall protection, so just buying GL-5 rated oil for all axles is recommended.
Last edited by GregWeld; 06-10-2014 at 11:22 AM.
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