Toyota 4Runner Rear Locker For 8" 30 Spline Rear Axel (Most 3rd and 4th Gen Models)
When you're pushing your 4Runner through steep climbs, deep ruts, or slick rock, an open diff just won't cut it. The ARB RD132 Air Locker gives you full lock-on-demand traction when you need it — and factory drivability when you don’t. Designed for Toyota 8” axles with 30 spline shafts, this air locker is a go-to upgrade for serious off-road builds.
Perfect for rear or front axle installs, the RD132 delivers trail-tested reliability, tight control, and that critical “no-slip” response when terrain gets technical.
? Note: Not compatible with factory E-Locker rear differentials or 5th Gen 4Runners (which typically run an 8.2” diff and different spline count). Must be used with an ARB air compressor (sold separately).
Key Features
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Fits Toyota 8” axle with 30 spline shafts
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Compatible with many 3rd, 4th, and 5th Gen 4Runners
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Selectable locking differential for instant traction on demand
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Tough, forged gears and case for extreme durability
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Works with ARB onboard air compressor (sold separately)
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Reliable activation with push-button switch and air solenoid
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Sealed design prevents air leaks and contamination
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5-year ARB warranty – trail-rated, battle-tested
