ARB RD123 Air Locker Differential Mazda 8 Inch Rear 30 Spline Shim Adjusted

The ARB RD123 Air Locker is a pneumatically operated locking differential designed for Mazda 4-cylinder vehicles equipped with an 8-inch rear axle. This advanced traction system provides 100% power to both wheels on demand, converting your conventional open differential into a fully locked axle at the flip of a switch.

Key Features:

• 8-inch ring gear configuration with shim-adjusted design for precise fitment
• 30-spline axle shaft compatibility for reliable power transfer
• Compatible with all gear ratios for maximum versatility
• Patented two-piece case design with forged gears for exceptional strength
• Pneumatic activation system for instant engagement and disengagement
• Functions as a normal open differential when unlocked for safe highway driving

Complete Kit Includes:

• ARB RD123 locking differential assembly with carrier bearings
• Dash-mounted activation switch for convenient operation
• Solenoid valve and air line with bulkhead fittings
• Installation hardware and detailed instructions

When engaged, the Air Locker prevents the differential gears from rotating independently, locking both axle shafts directly to the ring gear for maximum traction in challenging off-road conditions. The system operates seamlessly, engaging in approximately 0.1 seconds without affecting on-road drivability or causing driveline wear. Engineered and manufactured in Australia, ARB Air Lockers are trusted worldwide in extreme off-road competition and backed by an industry-leading 5-year unlimited mile warranty.

Important Note: Requires a 12-volt ARB air compressor for operation (sold separately). Professional installation recommended. Carrier bearings included. Compatible with existing ring and pinion gears.