The Yukon 4340 chromoly axle kit replaces Dana 44 front axles with heavy-duty 4340 chromoly shafts manufactured with cold-rolled splines and advanced heat treating for improved strength. It includes two 19‑spline 9.72" outer axles, 30‑spline 33.19" RH and 30‑spline 18.91" LH inner axles and 1310/760X series u-joints, fitted for 1978–1979 Ford Bronco and 1973–1979 Ford F150 Dana 44 applications.
Yukon Gear Dana 44 Chromoly Axle Kit Replacement