Made from 9310 Vacumelt high strength billet steel, the TCS 29-spline output shaft is designed for extreme service and performance applications. An increased shaft diameter and radius results in 20% more strength than the OE version. This item does not include the Transfer Case Input Shaft. This unit must be used with a 29 spline input gear 05086311-AA from NV 271 transfer case. Instructions to shorten vehicle's input shaft are included.