Rear Drive Axle/Differential - Ford 7.5-Inch Ring Gear

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The rear axle assembly has the following features:
^ An integral-type housing hypoid gear design (center of the pinion set below the centerline of the ring gear).
^ The hypoid differential ring gear and pinion consists of a ring gear and an overhung drive pinion which is supported by two opposed tapered roller bearings.
^ Pinion bearing preload is maintained by a drive pinion collapsible spacer (4662) on the differential pinion shaft (4211) and adjusted by the pinion nut.
^ The axle housing assembly consists of a cast center section with two steel tube assemblies and a stamped differential housing cover (4033).
^ The differential housing cover uses silicone sealant as a gasket.
^ The differential pinion shaft is retained by a threaded differential pinion shaft lock bolt assembled to the differential case (4204).
^ The differential case is mounted in the rear axle housing (4010) between two opposing differential bearings (4221) that are retained in the rear axle housing by removable bearing caps.
^ SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A is used in this assembly.
^ Differential bearing preload and ring gear backlash are adjusted by differential bearing shims located between the differential bearing cups and the rear axle housing.
^ Rear axle identification is on an embossed metal tag bolted to the differential housing cover.