Model A Differential Gear Case To Bearing Shim
Use this .005" thick shim between the A-4221 Bearing and the differential gear case to compensate for wear. Assemble your rear end with out any gaskets between the axle housing and center section, if axle locks, you are good and don't need these shims. If axle turns freely, add shims until axle locks. Sold individually. U.S.A.