The Yukon conversion bearing lets a small-bearing axle install into a large-bearing housing for Ford 9 in applications. Specified dimensions are 3.150 in outer diameter and 1.377 in inner diameter to adapt small bearing axles into Ford 9" large bearing housings. Yukon supplies small parts and conversion components to support axle modifications and service where those measurements are required.
Yukon Gear Conversion Bearing For Small Bearing Ford 9in axle in Large Bearing Housing