This assembly is designed to be a bolt-in conversion to solve breakage issues associated with the OEM 10-spline shafts by converting to a 31-tooth involute spline profile. The hub assemblies are also commonly used when building street rods that incorporate an independant rear suspension. 

It utilizes the original bearings and seals. The kit comes with all parts necessary for the conversion, including several thicknesses of preload shims for the proper tapered roller bearing pre-load. The yoke-shaft is made from a 300M aircraft alloy forging that has been heat-treated and shot peened for improved cycle life, and features removable caps that simplify the installation. The universal joint cap attachment fasteners are drilled for safety wire locking. The yoke-shaft features a 1”-20 thread that increases strength. The hub is 4340 steel that is through-hardened heat treated with our austempering process. Wheel studs are an ARP product with a quick-start nut-aligning feature. Installation - Service instructions can be found on Service Bulletin #0114.