Vehicle Fitment

• 1971–2018 Jeep Wrangler (4WD; various trims and engines) with front Dana 30 axle and 27‑spline shafts, 3.73 and higher gear ratios — Front Differential

Features

• ARB Air Locker differential engineered to provide on‑demand 100 % traction when needed
• Pneumatically actuated locking mechanism for traction control at any speed
• Operates like a conventional open differential when not locked for everyday drivability
• Two‑piece ultra‑durable design with minimal moving parts for reliability
• Patented timed locking system for quick engagement and disengagement
• Steel‑reinforced elastomer bonded seal designed to withstand extreme conditions
• Includes activation switch, solenoid valve, air line, and bulkhead fittings for system integration
• Compatible with onboard air systems (air compressor required but not included)

Specifications

• Part Type: Air Locker locking differential
• Position: Front differential unit
• Axle Type: Dana 30
• Spline Count: 27‑spline axle shaft
• Supported Gear Ratios: 3.73 and up
• Shaft Diameter: ~1.16 in
• Carrier Material: Nodular iron steel
• Includes: Differential, activation switch, solenoid, airline, and bulkhead
• Operation: Pneumatic activation from driver‑mounted switch

Included Components

• 1x ARB RD100 Air Locker differential carrier
• 1x Activation switch
• 1x Solenoid valve
• 1x Airline with bulkhead fitting

Product Description

The ARB RD100 Air Locker differential is a high‑performance locking differential designed for Jeep Wrangler vehicles equipped with a front Dana 30 axle and 27‑spline shafts with 3.73 and higher gear ratios. This differential allows the driver to instantly lock both front wheels together at the push of a switch, providing maximum traction when traversing difficult terrain while maintaining smooth, conventional differential action when unlocked for everyday driving.

Pneumatically actuated from a dash‑mounted switch, the ARB Air Locker’s patented timed locking mechanism offers both strength and rapid response without sacrificing drivability. The rugged, two‑piece design minimizes moving parts for improved reliability and durability in harsh environments. Complete with a switch, solenoid, air line, and bulkhead fitting, this differential is ready to integrate with your vehicle’s onboard air system (air compressor required, sold separately). Ideal for off‑road enthusiasts and trail drivers, the RD100 enhances traction control and confidence on challenging surfaces while preserving on‑road handling characteristics.