ARB Air Lockers are air-operated locking differentials built for off-road enthusiasts who need reliable grip on rough terrain. By letting both wheels on the axle turn at the same rate when locked, these lockers ensure power goes to each wheel equally. This article walks you through what ARB Air Lockers do, why they matter, and answers common questions so you can decide if they're right for your vehicle.
How ARB Air Lockers Work
- Air-Operated Mechanism: A small onboard air compressor supplies pressurized air to engage or disengage the locker. This setup means you can lock or unlock your differential at the flick of a switch.
- Equal Power to Both Wheels: When locked, the axle forces both wheels to spin at the same speed. This is especially helpful when one wheel loses traction.
- On-Demand Control: Keeping the differential open on normal roads avoids unnecessary strain, while locking it off-road gives you max traction only when you need it.
Why They’re Important for Off-Roading
- Better Traction in Tough Spots: Mud, rocks, sand, and other challenging surfaces require both wheels to pull. An open diff often sends power to the wheel with the least grip.
- Confidence Over Obstacles: Climbing steep hills or crossing uneven terrain is simpler with a locked diff. You won’t worry as much about a wheel spinning uselessly.
- Less Strain on Other Parts: Distributing power evenly helps reduce the stress on driveshafts, axles, and other drivetrain components.
Frequently Asked Questions About ARB Air Lockers
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Do I need a special compressor for ARB Air Lockers?
ARB typically offers a compatible air compressor designed to run their lockers. You can also run them with certain other onboard air systems, but check compatibility before you buy. -
Can I lock the front and rear axles separately?
Yes. Many setups let you choose which axle to lock. Some drivers only lock the rear, while others lock both axles for serious off-road situations. -
Will an ARB Air Locker affect my highway driving?
Not if you keep it unlocked. You’ll drive with a normal open differential on paved roads. Only lock it when you’re off-road and need extra traction. -
How tough are ARB Air Lockers?
They’re built to handle rough conditions. ARB uses high-quality materials, so they stand up to dirt, water, and other off-road hazards. -
Is installation a DIY project?
It can be if you have experience with differentials and air systems. However, many folks prefer letting a professional handle it to ensure correct setup and alignment. -
Do ARB Air Lockers require ongoing maintenance?
Maintenance is generally minimal. Check your air lines and compressor periodically to make sure everything remains sealed and functional. -
Can they help with towing or hauling?
While they’re mainly for off-road traction, a locked diff can help if one wheel on your towing axle slips. Still, they aren’t a substitute for proper towing suspension and weight distribution. -
Are ARB Air Lockers noisy when engaged?
You might hear a slight mechanical sound when locking or unlocking, but most drivers find that normal driving noise covers it. -
Do I need ARB Air Lockers on both axles?
Not always. Many off-roaders do fine with just a rear locker, but having both front and rear locked provides the best grip in extreme conditions. -
Can ARB Air Lockers be used on older vehicles?
Yes. ARB offers lockers for a wide range of axles. Make sure to verify which kit fits your model and year.
Ready to Buy ARB Air Lockers? Check out Shockwarehouse for a wide selection of ARB products and compatible accessories. Whether you tackle rocky trails, muddy roads, or just want added peace of mind, you’ll find what you need to maximize your off-road adventures.
