ARB RD259 Air Locker Differential for RAM 1500 Rear Axle

The ARB RD259 Air Locker is a high-performance locking differential designed specifically for RAM 1500 rear axles. This premium differential lock provides maximum traction on demand, allowing you to engage and disengage 4WD traction with the simple flip of a switch from inside your vehicle.

Key Features:

• Two-piece forged gear design for exceptional strength and durability
• Can be engaged at any speed without stopping or slowing down
• Smooth, instantaneous disengagement with dash-mounted switch control
• Backed by ARB's industry-leading 5-year unlimited mileage warranty
• Serviceable design with full range of replacement parts available
• Pneumatic activation provides reliable, consistent performance

ARB Air Lockers are the gold standard in differential locking technology, offering superior traction in challenging off-road conditions including mud, snow, sand, and rock crawling. Unlike limited-slip differentials that provide partial traction, the Air Locker delivers 100% power distribution to both wheels when engaged, ensuring you maintain forward momentum when one wheel loses traction. When disengaged, your vehicle operates with normal open differential characteristics for comfortable on-road driving.

Installation requires an ARB Air Compressor system (sold separately) and professional installation is recommended. This unit is compatible with specific RAM 1500 axle configurations—verify fitment for your specific year, model, and axle ratio before purchase.