ARB Air Locker Adjuster Nut — 100601SP Traction Board This is the full kit

This is the full kit - the CNC-machined aluminum block

Single slide-out drawer for accessible bulkhead storage

or chase-light setup

Permanent 120W charging power for the roof of your rig

ARB Air Locker Adjuster Nut — 100601SP Traction Board This is the full kitSetting carrier bearing preload on an ARB Air Locker starts with the right adjuster nut. This is genuine ARB spare part 100601SP. The adjuster nut threads into the differential housing bearing caps to set and lock carrier bearing preload when installing or servicing an ARB Air Locker. Adjuster nuts are model specific, so match part 100601SP to your exact differential and Air Locker before ordering, and torque to ARB's specification on assembly. Browse