The ARB Air Locker Shim Driver is a professional automotive differential service tool for installing and servicing common shim pre-loaded differentials. Insufficient carrier bearing pre-load can cause premature bearing failure and ring and pinion failure in all differentials, as well as possible oil/air leakage issues in an Air Locker differential.
Most common Salisbury style axle assemblies, including Dana Spicer model 44, require pre-load shims to be tapped into place to achieve the required pre-load during set-up. Tapping a shim into a tight space from a single point on its outside edge can damage the shim and render it useless, adding cost and labor to the installation.
Part of ARB's Air Locker Tools range of differential service/installation equipment, the ARB Air Locker Shim Driver includes six different sized steel profiles. These profiles evenly distribute installation force from tapping around the outside edge of a differential shim as it is tapped into place in the assembly. This allows thinner shims to be inserted into tighter places than would be possible without the Shim Driver.
Key features:
| Box Height | 2.4 in |
| Box Width | 7.1 in |
| Box Length | 7.9 in |
| Box Weight | 3.2 lbs |
| Brand | ARB |
