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The Yukon 4340 chromoly axle kit is a front axle replacement for Dana 30-equipped Jeep XJ, YJ and TJ applications, made from heavy-duty 4340 chromoly with cold-rolled splines and advanced heat treating. The kit includes two 30‑spline inner axles, two 27‑spline outer axles and 1310 series u-joints and hardware, supplied to fit Dana Spicer 30 front differentials in XJ/YJ/TJ vehicles.
Yukon Gear Front 4340CM Rplcmnt Axle Kit For Dana 30 Jeep XJ / YJ & TJ w/ 30 Spline Axles
