Home Jeep Repair Jeep CJ Rebuilder»s Manual: 46-71
Fig 5-36. Chapter 5: Axle Rebuilding and Upgrades - Rebuilding the Front Axle Assembly

Fig 5-36. If you change the pinion gear, you will likely need to add or subtract shim stack thickness. Shims come in "kits," offering various thicknesses.

Chapter 5: Axle Rebuilding and Upgrades - Rebuilding the Front Axle Assembly