Yukon 4340 Chrome Moly rear axle for GM 10.5 14 bolt truck and 11.5, 30 spline. This is a cut to fit axle which fits 31 to 35 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. Please verify bolt pattern on 2011 & later models. This axle has a 3.562 bolt pattern. Some late model applcaitons use a larger bolt pattern. Product Features:Fits GM 10.5 14 bolt truck4340 Chromoly30 splineCut to length design fits 31-35 applications