Yukon 4340 Chrome Moly replacement rear axle for D60, 30 spline. This is a cut to fit axle which fits 34 to 36.5 applications. Yukon 4340 Chrome Moly alloy axles offer a strength increase over stock while retaining a low cost. Yukon 4340 Chrome Moly alloy rear axles come with a limited lifetime warranty against manufacturing defects. Product Features:Fits Dana Spicer 604340 Chromoly30 splineCut to length design fits 34-36.5 applications8 x 3.96 bolt pattern