Thread: Axel Gears.
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      04-15-2019, 11:38 PM   #2
r_1
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Drives: e83,e46,e24,e30,e36,e39
Join Date: Apr 2019
Location: Va

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fluids

Front and rear diffs are 75w90 or 75w140 synthetic gear oil, transfer case is special TF-0870. From BMW about $70-80. I use Mobil1 75w140 full Synthetic gear oil, and the BMW transfer case fluid. Depending on production date the rear diff might not have a drain plug, you will have to suck it out if that's the case.
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