The ARB Air Locker RD249CE is a competition-grade, driver-selectable locker for the Ford 10.25" housing with a 40-spline centre and 2.25" carrier bearings. One switch delivers 100% lock for the toughest climbs and rock, then releases to full open-differential behaviour for civilised road driving.
This Competition Edition is built for extreme, high-torque, large-diameter tyre applications where a standard locker would be marginal. ARB's forged four-pinion centre and oversized bearings handle serious abuse, while air-operated engagement keeps locking instant, repeatable and fully under the driver's control.
Specifications
| Attribute | Detail |
|---|---|
| Differential / housing | Ford 10.25" |
| Spline count | 40 |
| Carrier bearing | 2.25" |
| Series | Air Locker Competition Edition |
| Engagement | Air-operated, driver-selectable (100% locking) |
| Brand / MPN | ARB / RD249CE |
Fitment note: Air Lockers are selected by differential and spline count, not by year/make/model — confirm your Ford 10.25" carrier is 40-spline with 2.25" bearings before ordering.
Requires an ARB air source (on-board compressor or CKMA/CKMTA kit) and an installation kit. Backed by ARB's limited warranty.
Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm. See www.P65Warnings.ca.gov.
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