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 Maintenance Differential Fluid Change |
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The Jeep Factory Service Manual maintenance schedule B recommends that you drain and refill both axles every 12,000 miles. You should also do this if you cross deep water or get stuck in deep mud. Drop by the dealer and they'll probably quote you anywhere from $75 to $100 for the service. You can do this yourself for quite a lot less.
Take a trip to the local auto parts store and get the recommended oil. My manual recommends Mopar® Hypoid Gear Lubricant or equivalent. It also says when equipped with TRAC-LOK, include 4 ounces of Friction Modifier Additive. Depending on your axle, it should take 3.5 to 4 quarts of fluid. I was able to find gear oil made for limited slip (TRAC-LOC is limited slip) so no need to worry about the additive. You will also need to decide how to reseal the differential. There are really nice gaskets available from LubeLocker.com for most common axles. Your dealer or auto parts store may have a standard gasket. The most popular method is to use a layer of RTV and no gasket at all. Probably cheaper, but its a little more work than I like. |
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