gear oil
05-13-2008, 07:23 PM
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gear oil
what rear end gear oil should i use theres a couple diff kinds and im not sure which to use - not what kind of oil the weight thanks
05-13-2008, 07:57 PM
Join Date: May 2001
Location: Cabot, Arkansas
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The 10.5" rear in the Superduty calls for a 75w-140 synthetic. Not sure about your 10.25" but I don't see any reason why it wouldn't be the same.
05-13-2008, 08:32 PM
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Yep I use 75W-140 as well. Royal purple synthetic to be precise
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05-13-2008, 07:23 PM
