It is difficult to set the proper differential bearing preload in Chrysler automatic transaxles. It is necessary to reset the preload when any of the following components are replaced: transaxle case, differential carrier, differential bearing retainer, extension housing and differential bearings. When setting the preload of the Chrysler transaxle differential bearings, rebuilders may exhaust the popular selective spacer sizes in current spacer kits. Limits waste by allowing use of all the washers provided in spacer kits. Provides more precise setting of transfer shaft gear endplay. Specs Material: Steel Inner Dia.: 2.495" Thickness: 0.005" Outer Dia.: 2.835"