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The Yukon Gear & Axle fill plug is a direct-replacement fill plug for Ford 9-inch differentials, matched to a 1/2" thread to restore proper fluid access for service and topping off gear oil. It’s a straightforward service part that keeps axle housings sealed and accessible during maintenance. Yukon supplies a broad range of differential small parts—ring gear bolts, pinion nuts, crush sleeves and washers—so this plug fits into complete axle repairs.
Yukon Gear Fill Plug For Ford 9in / 1/2in Thread
