ARB Air Locker RD114 for GM 14-Bolt 10.5in 30-Spline Full Float, Select 1970-2005 Chevrolet/GMC

Fits select 1970-2005 Chevrolet and GMC C20, C30, K20, K30, 2500, and 3500 series trucks and vans with the GM 14-bolt 10.5-inch full-floating rear axle.

The ARB RD114 Air Locker provides 100% traction on demand, allowing you to tackle difficult off-road terrain without compromising on-road drivability. This pneumatically operated locking differential replaces the internal spider gears; when activated via the dash-mounted switch, it locks both axle shafts together to provide equal power to both wheels regardless of surface conditions. When disengaged, it functions as a conventional open differential for smooth cornering and reduced driveline wear.

Engineered for extreme reliability, the RD114 features a high-strength two-piece design with minimal moving parts. The patented timed locking mechanism ensures ultra-fast engagement and disengagement, while the steel-reinforced, elastomer-bonded annular seal is designed to withstand extreme temperature fluctuations.

• Manufacturer Part Number: RD114
• Axle Compatibility: GM 14-Bolt 10.5" Ring Gear
• Axle Type: Full-Floating (FF)
• Spline Count: 30
• Design: Two-piece high-strength construction
• Seal: Steel-reinforced elastomer bonded annular seal
• Kit Contents: Air Locker differential, activation switch, solenoid valve, air line, and bulkhead fitting
• Note: Requires an onboard air compressor for operation (sold separately)