Need to know how much gear oil i need for my gear install. i have an eaton and 4.10's with 2 bottles of posi ford fluid. i have 2 bottles of 80w90 and really just wondering if i need 3.
Chris, if it is dry you will need 3. I would buy 1 extra just in case. You can always return it if you don't use it. Typically when the diff is sucked out for a fluid exchange you would only need 2.
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