8" IFS ARB Air Locker [RD121]

Overview:
The ARB RD121 Air Locker is a selectable locker for Toyota 8" IFS front differentials with 30-spline axles and gear ratios of 3.73 and numerically lower. It provides on-demand traction without compromising road manners or driveline longevity.
– Delivers full axle lock for maximum off-road traction
– Unlocks for daily driving comfort and efficiency
– Patented locking system ensures fast, reliable actuation
– Designed for extreme climates with reinforced annular seal
– Kit includes complete pneumatic control hardware
– Compatible with ARB mini or high-output air compressors

Specifications:
– Application: Toyota 8" IFS, 30 spline
– Gear Ratio: 3.73 & Down
– Construction: Two-piece forged differential
– Seal: Steel-reinforced elastomer bonded annular design
– Actuation: Pneumatic via ARB compressor
– Included Components: Air Locker, switch, solenoid, air lines, bulkhead fitting

Fitment:
1995–2004 Toyota Tacoma, 2003–2009 Toyota 4Runner, 2007–2009 Toyota FJ Cruiser with 8" IFS front differential, 30-spline axles, and gear ratios 3.73 & down. Confirm specs before ordering.

Notes:
Requires ARB air compressor for operation (sold separately). Installation by a professional differential technician is recommended. Not compatible with higher gear ratio carriers.

Downloads:
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