ARB Airlocker 28 Spl Gm8.5In 10Bolt Aam860 S/N *Does NOT Dropship*

ARB Air Locker RD221 for GM 8.5in 10 Bolt AAM860 differentials. Provides instant traction lock with the flick of a switch.

Key Features

• 28 splines and 8.5-inch ring gear diameter — fits specific GM axles.
• Instant locking traction aid — keeps you moving in all conditions.
• Pneumatically operated locking system — activated with a switch.
• Prevents internal differential gears from rotating when locked — ensures both wheels turn together.
• Operates like a conventional open differential when unlocked.
• Allows for slower, safer, and more controlled driving.