Description

The rear axle assembly is an integral-type housing hypoid gear design (centerline of the pinion set below the centerline of the ring gear).

The rear axle assembly has these characteristics:

• Hypoid differential ring gear and pinion (4209) with a 191mm (7.5 inch) diameter ring gear.
• Overhung drive pinion supported by two opposed tapered roller bearings.
• Pinion bearing preload maintained by a differential drive pinion bearing spacer (4662) .
• Rear axle housing (4010) has a cast center section with integral cast suspension attaching ears.
• Differential case (4204) is a one-piece design with two openings to allow assembly of internal components and lubrication flow.
• Differential pinion shaft (4211) is retained with a differential pinion shaft lock pin (4241) threaded to the differential case .
• Differential case is mounted in rear axle housing between two opposed tapered differential bearings (4221) .
• Differential bearings are retained by removable bearing caps.
• Differential bearing preload and ring gear backlash are adjusted by differential bearing shims (4067) located between the differential bearing cups (4222) and the rear axle housing .
• Pinion Depth Gauge T79P-4020-A is required to properly set pinion depth.
• Semi-floating axle shafts (4234) are retained in place by rear axle shaft retaining u-washers (4N237) .
• Rear axle shaft retaining u-washers fit into machined recess in differential side gears (4236) .