Just use regular 80w90 gear oil. You are not supposed to use Synthetic in a Muncie or T-10. It will tear up the brass rings and also will cause the brass rings to break.
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Just use regular 80w90 gear oil. You are not supposed to use Synthetic in a Muncie or T-10. It will tear up the brass rings and also will cause the brass rings to break.
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on 5/5/2018, 2:38 pm, in reply to "