How does the ARB Air Locker improve traction?

When activated, the Air Locker locks the internal differential gears. This forces both wheels on the axle to rotate at the same speed, ensuring maximum traction even on slippery surfaces or uneven terrain.

Can I use the Air Locker on the highway?

Yes, when unlocked, the Air Locker functions like a standard open differential, allowing for normal driving characteristics. It is designed to be engaged only when you need extra traction in off-road conditions.

What gear ratios is this Air Locker compatible with?

This specific ARB Air Locker, part number RD187, is designed for AMC Model 20 differentials with a 2.73 or numerically lower gear ratio.

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ARB

ARB Airlocker Amc Model 20 2.73&Dn S/N

Name: ARB Airlocker Amc Model 20 2.73&Dn S/N
Brand: ARB
Price: 1299.95 USD
Availability: InStock

$1299.95

ARB Air Locker for AMC Model 20 differentials (2.73 & Down gears). Provides instant, selectable traction control for off-road driving.

Key Features

Selectable traction control — locks the differential for maximum grip when needed.
Pneumatic activation — engages instantly with the flick of a switch.
Works like an open differential when unlocked — maintains normal driving characteristics on the street.
Designed for AMC Model 20 differentials with 2.73 and numerically lower gear ratios.
Well-built design allows activation at any speed.