ARB Airlocker Dana 60 30 Spline Differential

1971–1980 Dodge B300 Van / 1994–2003 Dodge Ram 2500 & 3500 / 1995–1998 Dodge B2500 & B3500

RD163

Overview:

The ARB Air Locker is the world’s premier traction aid designed to keep your vehicle moving confidently across the toughest terrain. Engineered for Dodge B300 Vans, Ram 2500 and 3500 trucks, and B2500/B3500 models within the specified year ranges, this differential upgrade provides instant, on-demand locking capability at the flick of a switch. Whether you’re tackling mud, rocks, or uneven surfaces, the Air Locker ensures both wheels turn together, delivering maximum traction and control.

Ideal for off-road enthusiasts, commercial users, and anyone requiring superior traction without sacrificing on-road drivability, the ARB Air Locker enhances vehicle capability while maintaining smooth operation when unlocked. Its pneumatic locking system allows activation at any speed, giving you the confidence to navigate challenging conditions safely and efficiently.

Key Features:

Designed with durability and reliability in mind, the ARB Air Locker offers advanced technology and robust construction to meet demanding off-road needs:

• Instant pneumatic locking system for 100% traction on demand
• Operates like a conventional open differential when unlocked for normal driving
• Activation possible at any vehicle speed for maximum versatility
• Steel reinforced, elastomer bonded annular seal withstands extreme temperatures
• Patented timed locking mechanism ensures ultra-fast unlocking and high strength
• Minimal moving parts reduce wear and increase reliability
• Includes activation switch, solenoid valve, air line, and bulkhead fitting for easy installation
• Compatible with Dana 60 axles featuring 30 spline shafts and gear ratios of 4.10 and down
• Maintains driveline integrity without causing additional wear

Construction & Design:

The ARB Air Locker is engineered with a two-piece design that balances strength and durability. Its internal locking mechanism is pneumatically operated, eliminating the need for complex mechanical linkages and reducing potential failure points. The steel reinforced annular seal is bonded with elastomer to resist harsh environmental conditions, including extreme heat and cold, ensuring long-lasting performance.

Manufactured to meet or exceed OEM specifications, the Air Locker integrates seamlessly with Dana 60 axles, providing a robust solution that withstands the rigors of off-road use while maintaining smooth operation on pavement.

Installation & Fitment:

Installation of the ARB Air Locker requires professional mechanical skills and an air compressor system (sold separately) to operate the pneumatic locking mechanism. The kit is designed for direct fitment on Dana 60 axles with 30 spline shafts and gear ratios of 4.10 and lower, specifically tailored for Dodge B300 Vans (1971–1974, 1975–1980), Dodge Ram 2500 and 3500 models (1994–2003), and Dodge B2500 and B3500 trucks (1995–1998).

All necessary components for activation are included, allowing for straightforward integration with existing vehicle systems. Proper installation ensures reliable operation and maximizes the benefits of enhanced traction.

What's Included:

• ARB Air Locker differential assembly
• Activation switch for driver control
• Solenoid valve for pneumatic operation
• Air line tubing
• Bulkhead fitting for secure air line connection

Ideal For:

This ARB Air Locker is perfect for off-road enthusiasts, commercial operators, and anyone who demands superior traction from their Dodge B300 Van or Ram 2500/3500 trucks. Whether navigating rugged trails, slippery surfaces, or heavy-duty work environments, the Air Locker provides confidence and control, reducing the risk of getting stuck and minimizing vehicle damage.

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.