CarbonSteel
Well-Known Member
I would run 75W-110 in the front axle because it is the upper viscosity 75W-90 used to be before the SAE J306 tables were updated. I have had fantastic service with Amsoil gear oil and would highly recommend it. I would also recommend changing the rear axle oil at 10K miles. The vast majority of all axle wear occurs in the first 15K of use. I have seen this repeatedly in every axle I have ever owned and have UOA data to support it as well.
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