The Snap-on Rear Carrier Socket, No. CRC1, can be used to turn and fine-tune the bearing adjuster within the rear differential on Chrysler and Dodge vehicles. The flat, steel socket has a 1-1/4" exterior hex and a 1/2" square drive. The unique hex size ensures proper engagement on the bearing adjuster, while a circular step on the edge of the tool prevents it from going through the adjuster. It is compatible with various makes and models of Chrysler, Dodge, Eagle and Jeep vehicles.