Rear Differential

Rear Drive Axle and Differential
^ The differential housing consists of a cast aluminum housing and a cast aluminum differential housing cover. The differential housing cover uses silicone sealant as a gasket.
^ The hypoid-design gearset consists of an 8.8-inch differential ring gear and a drive pinion gear. Two opposed pinion bearing's support the drive pinion gear in the differential housing.
^ A differential drive pinion collapsible spacer, located on the drive pinion gear shaft, maintains pinion bearing preload. The pinion nut adjusts the preload.
^ Differential bearing shims, located between the differential bearing cups and the differential housing, adjust the differential ring gear backlash and the differential bearing preload.
^ The differential case is a one-piece design with 2 openings to allow for assembly of the internal components and lubricant flow. Two opposed differential bearing's support the differential assembly in the differential housing. Removable differential bearing caps retain the differential assembly in the differential housing.
^ Inside the differential assembly, the differential pinion shaft supports 2 differential pinion gears. The pinion gears engage the differential side gears to which the halfshafts are splined. The differential pinion shaft lock bolt retains the differential pinion shaft in the differential assembly.
^ A circlip, located on the inboard CV joint stub shaft, holds the halfshaft in the differential assembly. When installed, the circlip engages a groove in the differential side gear.
^ An embossed metal tag, bolted to the differential housing cover, contains rear axle identification.
^ The limited slip rear axle requires SAE 75W-140 High Performance Rear Axle Lubricant XY-75W140-QL meeting Ford specification WSL-M2C192-A with 4 ounces of Additive Friction Modifier XL-3 EST-M 2C118-A.
^ The conventional rear axle requires SAE 75W-140 High Performance Rear Axle Lubricant XY-75W140-QL.