ARB Air Locker RD143 - Ford Ranger

The ARB Air Locker RD143 is an air operated locking differential for the Dana 44,32 SPL,3.73 & DN axle. An Air Locker is matched to the axle, not to the car model, so axle type, axle shaft spline count and ring & pinion ratio decide which model fits. The list below comes straight from the ARB application chart.

Key features

• ARB part number: RD143
• Axle: Dana 44,32 SPL,3.73 & DN
• Axle shaft splines: 32
• Ratio range: 3.73 & DN

Fitment per the ARB application chart

• Ford Courier, Ranger (Thai), Raptor (Aus), 2006-11 – rear axle (Dana 44,32 spline)
• Mazda BT-50 (Thai), 2006-11 – rear axle (Dana 44,32 spline)

Specifications

• ARB part number: RD143

Szekla4x4.pl is an online shop, a walk-in store and a workshop specialising in off-road and overlanding. If you would like us to fit this for you or match the rest of the setup, get in touch.

Frequently asked questions

How do I know which locker fits my vehicle?

By axle type and axle shaft spline count, and for some axles also by the ring and pinion ratio. The model year alone is not enough – the same model was built with different axles.

Do I need an air compressor?

Yes. An Air Locker runs on compressed air, so a compressor and a switch kit are required.

Not sure which axle your vehicle has? Get in touch – we will check the ARB chart by spline count and ratio, and we can fit the locker for you.