ARB 0770004 Air Locker Shim Driver Set for Differential Service

The ARB Air Locker Shim Driver Set is a professional automotive differential service tool designed for installing and servicing common shim pre-loaded differentials. This specialized tool ensures proper carrier bearing pre-load, which is critical to preventing premature bearing failure, ring and pinion damage, and potential oil or air leakage issues in Air Locker differentials.

Key Features:

• 6 different sized steel profiles to accommodate various differential shim sizes
• Evenly distributes installation force around the outside edge of differential shims
• Prevents shim damage during installation in tight spaces
• Compatible with most common Salisbury style axle assemblies, including Dana Spicer Model 44
• Enables installation of thinner shims in tighter spaces than traditional methods
• Part of ARB's professional Air Locker Tools range

Proper carrier bearing pre-load is essential for differential longevity and performance. This shim driver set allows technicians to tap shims into place without the risk of damaging them from single-point contact, reducing installation time and eliminating costly shim replacements. The precision-engineered steel profiles distribute tapping force evenly, making differential setup more reliable and efficient.