This is a new very correct and high quality shim set.  This is for the Dana 41 and 44 rear axles. These were used on the CJ2A, CJ3A, M38, M38A1, CJ3B, and early CJ5.  This is what shims the inner wheel bearing located on the outer axle flange. These are used to shim the remainder of the bearing that sticks out before placing the bearing retainer plate, seal and backing plate on the flange. This kit is really enough for both sides if your bearings are nearly flush to the flange. If not you will be safe with two sets. This kit is roughly 1/8″ worth of shims. Part Number: 805524