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The ARB Air Locker for Dana 30 differentials with a 27‑spline 1.21 in. shaft supports ring gear ratios of 3.73 and up for Dana IFS applications. It provides on‑demand, pneumatic locking that delivers 100% traction when engaged and behaves like an open differential when released. The kit includes the Air Locker, switch, solenoid valve, air line and bulkhead fittings; an air compressor is required and sold separately.
ARB Airlocker Dana30 27Spl 3.73&Up S/N.
