ARB Air Locker Differential

Jeep Grand Cherokee/Wrangler 91-06 5.2L/4.0L/2.5L

RD102

Overview:

The ARB Air Locker is the world’s premier traction aid designed to keep your vehicle moving confidently through the toughest terrain. Engineered for Jeep Grand Wagoneer (1985–1989), Wagoneer (1985–1989), Wrangler (1987–2006), and Grand Cherokee (1993–2004) models, this pneumatically operated locking differential provides instant, on-demand 100% traction at the flick of a switch. Whether you are navigating rocky trails, mud, or snow, the Air Locker ensures both wheels turn together, maximizing grip and control without compromising on-road drivability.

Ideal for off-road enthusiasts and serious four-wheel drivers, the ARB Air Locker allows you to maintain momentum and tackle challenging conditions safely and efficiently. Its robust design supports activation at any speed, enabling seamless transitions between locked and open differential modes without driver intervention beyond the simple switch control.

Key Features:

Designed for reliability and ease of use, the ARB Air Locker incorporates advanced technology to deliver superior traction and durability:

• Pneumatically operated locking system for instant, on-demand traction
• Activation switch located inside the vehicle for safe, convenient control
• Steel reinforced, elastomer bonded annular seal engineered for extreme temperature resistance
• Two-piece ultra-durable design with minimal moving parts for maximum reliability
• Compatible with Dana 35 differentials featuring 27 spline shafts and 3.54 gear ratios and up
• Patented timed locking mechanism ensures high strength and ultra-fast unlocking
• Operates as a conventional open differential when unlocked, preserving driveline longevity
• Provides 100% traction without affecting on-road handling or driveline wear
• Includes all necessary components for installation including activation switch, solenoid valve, air line, and bulkhead fitting

Construction & Design:

The ARB Air Locker is engineered with ruggedness and longevity in mind. Its two-piece design minimizes moving parts, reducing potential failure points and ensuring consistent performance in harsh environments. The steel reinforced, elastomer bonded annular seal withstands extreme climatic conditions, from freezing cold to intense heat, protecting internal components and maintaining airtight operation.

Constructed to fit Dana 35 differentials with 27 spline axles and gear ratios of 3.54 and higher, the Air Locker integrates seamlessly with your vehicle’s drivetrain. The robust internal locking mechanism prevents differential gears from rotating independently, effectively tying both axle shafts to the ring gear for maximum traction.

Installation & Fitment:

Installation of the ARB Air Locker requires professional mechanical knowledge and an air compressor system (sold separately) to operate the pneumatic locking mechanism. The kit is designed for direct fitment on Jeep Grand Wagoneer (1985–1989), Wagoneer (1985–1989), Wrangler (1987–2006), and Grand Cherokee (1993–2004) models equipped with Dana 35 differentials featuring 27 spline shafts and gear ratios of 3.54 and up. Minimal modifications are needed, and the included components simplify the installation process.

What's Included:

• ARB Air Locker differential assembly
• Activation switch for in-cabin control
• Solenoid valve for pneumatic operation
• Air line and bulkhead fitting for air supply connection

Ideal For:

This ARB Air Locker is perfect for off-road enthusiasts, trail riders, and anyone who demands superior traction from their Jeep in challenging conditions. Whether you’re rock crawling, mudding, or driving on slippery surfaces, this differential upgrade enhances vehicle capability, safety, and control. It is especially suited for Jeep owners looking to improve their vehicle’s off-road performance without sacrificing everyday drivability.

ARB is a globally recognized off-road and overlanding brand that builds hard-use equipment for trucks, SUVs, and adventure rigs. From bumpers, roof racks, and protection gear to its well-known Old Man Emu suspension systems, ARB focuses on durability, fitment, and real-world trail performance for drivers who push beyond pavement.