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The Yukon 4340 chromoly axle kit is a front replacement set engineered from high-tensile 4340 chromoly with cold-rolled splines and heat treating for durable service. This kit includes inner and outer 4340 chromoly axles and Yukon Super Joints—two 19‑spline 9.72" outer axles plus 30‑spline 33.19" RH and 30‑spline 18.91" LH inner axles—made to fit Dana Spicer 44 in 1978–1979 Bronco and 1973–1979 F150 models.
Yukon Gear Front 4340 Chrome-Moly Replacement Axle Kit For Dana 44 / Ford Bronco and F150
