ARB 013036SP Air Locker Differential Case - for RD158

The ARB 013036SP is a replacement differential case designed specifically for the ARB Air Locker RD158 model. This precision-engineered component serves as the housing for the Air Locker's internal locking mechanism and differential gears, providing the structural foundation for the pneumatic locking system.

Key Features:

• Designed for ARB Air Locker RD158 applications (Dana 50, 30-spline)
• High-strength construction to withstand extreme off-road conditions
• Precision-machined to exacting tolerances for proper gear meshing and bearing preload
• Compatible with ARB's patented timed locking mechanism
• Essential replacement component for Air Locker rebuilds and repairs

This differential case is a critical component of the ARB Air Locker system, which provides selectable traction control for off-road and 4x4 vehicles. When the Air Locker is activated, the case houses the mechanism that prevents the axle shafts from turning independently, delivering maximum traction to both wheels. Professional installation by an experienced differential technician is strongly recommended, as proper setup requires specialized tools and expertise in bearing preload adjustment and gear setup.