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Old 09-03-2021, 05:25 AM
1QwkSport2.5r's Avatar
Join Date: Oct 2006
Location: Cottage Grove, MN
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Clean it out really well to remove the old lube and replace the lube with something thicker. Usually there are two types of diffs - sealed and unsealed. Sealed diffs can use silicone Diff oils and unsealed diffs use grease. Depending on the style you have will point you to what type of lube you need. I would do a little searching to get an idea of what you need. I’m not familiar with your specific truck, so I cannot say for sure what you’d want. Usually a racer will use a thinner lube than a basher, so consider that when you’re researching. Sorry I’m not further help.

Also - we’re the gears inside the Diff in good shape?