Rear Drive Axle/Differential - Ford 8.8-Inch Ring Gear
Differential Case and Ring GearSpecial Tool(s):
Special Tool(s):
Material:
Disassembly
1. Remove the differential carrier.
2. Remove and discard the 10 differential ring gear bolts.
3. NOTE: Care should be taken not to damage the differential ring gear bolt hole threads.
Insert a punch in the differential ring gear bolt holes and drive the differential ring gear off.
4. Using the special tools, remove the 2 differential bearings.
5. Remove the differential pinion shaft lock bolt and remove the differential pinion shaft.
^ Discard the differential pinion shaft lock bolt.
6. NOTE: Due to the spring tension, care must be used when removing the differential clutch spring.
Remove the differential clutch spring.
7. Remove the differential gears.
1 Remove the 2 differential pinion gear and 2 thrust washers.
2 Remove the 2 differential side gears.
8. NOTE: Keep the differential clutch packs in order. Do not mix the differential clutch packs. The differential clutch packs must be reassembled in the same sequence.
Remove the differential clutch packs and differential side gears and tag them "RH" and "LH" with the selective shim
^ Clean and inspect the remaining components of the differential case for wear or damage and install new components as necessary.
9. NOTE: Do not use acids or solvents when cleaning the differential clutch pack. Wipe components with a clean, lint-free cloth only.
Clean and inspect the differential clutch packs for wear or damage and install new components as necessary.
Assembly
1. Install selective shims on the clutch pack and the 2 differential side gear assemblies.
2. Install the 2 differential side gears in the differential case.
3. Install the 2 differential pinion gears with the 2 differential pinion gear thrust washers in the differential case.
4. Using a soft-faced hammer, install the differential clutch spring.
5. Install the differential pinion shaft and install a new differential pinion shaft lock bolt finger-tight.
6. Using the special tool, install the 2 differential bearings on the differential case.
1 Position the differential bearings.
2 Using the special tool, press on the differential bearings.
7. Press the differential ring gear on the differential assembly.
8. Install the 10 new differential ring gear bolts.
^ Tighten to 105 Nm (77 lb-ft).
9. Using the special tools, check the torque required to rotate one differential side gear.
^ Mount the differential assembly and special tool in a vise.
^ The initial minimum break-away torque, if original clutch plates are used, must be within specification. The minimum rotating torque required to keep the differential side gear turning with new clutch plates may vary.
10. Install the differential carrier.