Axle Clamp Collars

1" Diameter two-piece clamping collars, sold as a Pair.

These are for securing the on the axle up against the outer-most axle bearings. The purpose is to prevent the axle moving from over-torqueing the axle nuts, which can easily over power the set screws on the bearings. If that movement does happen it can cause rear brake rotor rubbing and/or differential damage.