10, 3/8" (not included) -drill out holes for late model bolts
Tech Note: This locker has a larger diameter bearing journal for added strength. Therefore it does require different bearings which are included at no extra cost! Jeep Wrangler JK will require bolt holes to be enlarged to accept the JK's larger ring gear bolts.
Required Parts: These parts arerequiredfor installing this product on your vehicle. CKSA12air compressor (extremely compact, operates up to 2 air lockers, not intended for oversized tire inflation) or CKMA12air compressor (compact, operates up to 2 air lockers and will inflate tires when paired with a171302) or CKMTA12air compressor (still compact, operates up to 2 air lockers when paired with171503, will inflate tires AND run air tools when paired with a171302and will run even faster when paired with a171501air tank
Optional Parts: These parts are not required for installing this product on your vehicle. ALSB3- bracket for mounting three (3) rocker switches. Manufactured from steel and powder-coated black. (Suitable for moutning both a front and rear air locker and a compressor switch.)
"With our improved two piece design available right across the range, along with the addition of forged gears and an industry leading five year warranty, ARB Air Lockers are now better built and better backed than ever before.
Created to provide 100% traction on demand, without sacrificing any of your vehicle's highway driving performance, ARB Air Lockers employ a 12 volt ARB Air Compressor designed to activate (and deactivate) a solid and durable locking mechanism inside the differential. This gives you the traction you need, when you need it, all at the flip of a switch and all within the comfort of the driver's seat.
The advantage of the ARB Air Locker lies in the pneumatically operated locking system inside the differential. When activated, the Air Locker prevents the differential gears from rotating and therefore prevents the axle shafts from turning independently of each other. With both wheels tied directly to the rotation of the ring gear, the vehicle maintains maximum possible traction at all times. When unlocked, it operates just like a conventional 'open' differential.
In addition to providing outright improvements to a 4x4's off road capabilities, the Air Locker offers significant environmental benefits. An Air Locker equipped vehicle can be driven in a slower, safer and more controlled manner, greatly reducing the likelihood of vehicle damage and environmental impact."