After you remove the differential cover and drain the gear oil, check the gear pattern to
Until recently the only locking differential option for the Ford 93/4-inch axle was to buy an '09-or-later Ford F-150 pickup with the factory electronic locking diff. With nearly six million 93/4 axles on the street (commonly found in the F-150 and Expedition), it's a wonder that nobody has offered a selectable locking differential until now. ARB, the world leader in air locking differentials, saw the potential of the 93/4 axle and introduced the RD150 Air Locker for the Ford 93/4 34-spline axle.
As we write this, the ARB RD150 93/4 Air Locker is only available for use with the factory gear ratio, but by the time you read this it should be available for all aftermarket gearsets and ratios. Since our '08 Ford F-150 was in need of a better traction, we went to 4Wheel Parts in Redondo Beach, California, for the install.
The Ford 93/4 ARB is available for these '97-current Ford vehicles.
•E-50, E-250, E-350 vans
Tools Of The Trade
Installing an ARB Air Locker (or any locker, for that matter) into an axlehousing can be daunting for professionals and amateurs alike. In addition the tools to perform this work are either difficult to get or just plain expensive. For this reason ARB has introduced a line of air locker service tools, including an easy-to-use differential spreader (shown), a clamshell-style bearing puller kit, an air locker test gauge, a contoured shim driver tool set, and adjuster nut pliers for setting preload on adjuster-nut-type differentials. If you do any kind of differential work these tools from ARB are must-haves.
Since we are reusing the stock ring-and-pinion, we carefully removed the ring gear and ton
The ARB differential (left) is manufactured from heavy cross-sectioned nodular iron castin
Before the new differential can be installed it is necessary to drill and tap the axlehous
Prior to installing the ARB, you need to press into it the ring gear, tone ring, and beari
Even though we only changed the carrier it is still a good idea to make sure the different
One of the most important steps of any ARB install is routing the copper air supply line.
Air is the life's blood of the ARB, so it is important to route the compressor air line aw
Quality oil is critical to a differential's long life. We went with Amsoil Severe Gear 75-
Special thanks go to 4Wheel Parts in Redondo Beach. The crew performed a quality installat
400 W. Artesia Boulevard
ARB 4x4 Products
720 SW 34th Street
925 Tower Ave.