Ford F150 Pickup. Instruction — part 552
Fig. 4: Exploded View Of Rear Drive Axle/Differential
Courtesy of FORD MOTOR CO.
2003 Ford Pickup F150
2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 8.8-Inch Ring Gear - F150 Pickup
Fig. 5: Identifying Rear Drive Axle/Differential Components (1 Of 2)
Courtesy of FORD MOTOR CO.
2003 Ford Pickup F150
2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 8.8-Inch Ring Gear - F150 Pickup
Fig. 6: Identifying Rear Drive Axle/Differential Components (2 Of 2)
Courtesy of FORD MOTOR CO.
The rear axle assembly has the following features:
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An integral-type housing hypoid gear design (center of the pinion set below the centerline of the ring
gear).
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The hypoid ring gear and pinion consists of a ring gear and an overhung drive pinion which is supported
by two opposed tapered roller bearings.
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Pinion bearing preload is maintained by a collapsible spacer on the differential pinion shaft and adjusted
by the pinion nut.
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The rear axle housing consists of a cast center section with two steel tube assemblies and a stamped
differential housing cover.
2003 Ford Pickup F150
2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 8.8-Inch Ring Gear - F150 Pickup
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The differential housing cover uses silicone sealant as a gasket.
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The differential pinion shaft is retained by a threaded differential pinion shaft lock bolt assembled to the
differential case.
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The differential case is mounted in the rear axle housing between two opposing differential bearings that
are retained in the rear axle housing by removable bearing caps.
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SAE 75W-140 High Performance Rear Axle Lubricant F1TZ-19580-B or equivalent meeting Ford
specification WSL-M2C192-A is used in this assembly.
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Differential bearing preload and ring gear backlash are adjusted by differential bearing shims located
between the differential bearing cups and the rear axle housing.
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Rear axle identification is on an embossed metal tag bolted to the differential housing cover. For
additional information, refer to DRIVELINE SYSTEM-GENERAL INFORMATION .
DIAGNOSIS & TESTING
REAR DRIVE AXLE & DIFFERENTIAL
Refer to DRIVELINE SYSTEM-GENERAL INFORMATION .
IN-VEHICLE REPAIR
AXLE SHAFT
2003 Ford Pickup F150
2003 DRIVELINE/AXLES Rear Drive Axle/Differential - Ford 8.8-Inch Ring Gear - F150 Pickup
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