Yukon 1541H alloy rear axle for Chrysler 8.75 measuring 28 with 30 splines and 5×4.5 bolt pattern. for use with A-Body only. Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H alloy rear axles come with a one year warranty against manufacturing defects. Must use Green bearing. Stock A-body axles have a 5 x 4.0 bolt pattern. These axles require 10 x 2.5 or 11 x 2.5 E-body brakes due to their larger bolt pattern. This axle is not compatible with factory posi units that use a 2-piece side gear.