Traction-LOK Differential Case and Ring Gear
Traction-Lok Differential Case and Ring Gear
Special Tool(s)
Disassembly
1. Remove the differential assembly from the differential housing.
2. Remove the 10 bolts.
3. CAUTION: Do not damage the threads in the bolt holes.
Insert a punch in the bolt holes, and drive off the ring gear.
4. Using the special tools, remove the differential bearings, if necessary.
5. Remove the bolt and the differential pinion shaft.
6. WARNING: Due to the spring tension, use care when removing the differential clutch spring. Failure to follow these instructions may result in personal injury.
Remove the differential clutch spring.
7. Remove the differential gears.
1 Remove the two differential pinion gears.
2 Remove the two differential side gears.
3 Remove the two differential pinion thrust washers.
8. CAUTION: Keep the differential clutch packs in order. Do not mix them. Always reassemble them in the same sequence.
Separate the differential clutch packs and shims from the differential side gears and tag them "right" and "left".
^ Clean and inspect the remaining differential components for wear and damage and install new parts as necessary.
9. CAUTION: Do not use acids or solvents when cleaning the differential clutch pack. Wipe components only with a clean, lint-free cloth.
Clean and inspect the differential clutch packs for wear and damage and install new parts as necessary.
Assembly
1. CAUTION: 118 ml (4 oz) of the specified Ford Friction Modifier must be used in the axle.
Lubricate each steel clutch plate and soak all friction plates for no less than 15 minutes.
^ Use Additive Friction Modifier C8AZ-19B546-A or equivalent meeting Ford specification EST-M2C118-A
2. CAUTION: Do not mix the differential clutch packs or shims from one side with the other.
Assemble the differential clutch packs (without the shims) on their respective differential side gears.
3. Place the base portion of the special tool in a vise. Install the differential side gear and differential clutch pack (without the shim) on the tool.
4. Position the special too] hand-tight on top of the differential clutch pack.
5. Install the special tool over the disc and differential clutch pack.
6. Install the nut.
7. NOTE: Clutch Pack Rebuild Kit F5AZ-4947-A is available for this application.
Select and insert the thickest feeler gauge blade that will enter between the tool and the differential clutch pack. The reading will be the thickness of the new clutch shim.
Selective Shims
8. Remove the special tools from the differential clutch pack and differential side gear assembly.
9. Install shim(s) on the differential clutch pack and differential side gear assembly.
10. Install the differential side gear assemblies in the differential case.
11. Install the differential pinion gear and differential pinion thrust washer assemblies in the differential case.
12. Using a soft-faced hammer, install the differential clutch spring.
13. Install the differential pinion shaft and install a new bolt finger-tight.
14. Mount the differential case and the special tool in a vise. Using the special tool, check the torque necessary to rotate one differential side gear.
^ If reusing the original clutch plates, the initial minimum break-away torque must be no less than the specification. The minimum rotating torque necessary to keep the differential side gear turning with new clutch plates may vary.
15. Using the special tool, install the differential bearings, if removed.
16. Position the differential ring gear and the differential case. Align the bolt holes by starting two bolts through the holes in the differential case and the differential ring gear. Press the differential ring gear on the differential case.
17. Install the bolts.
^ Apply Stud and Bearing Mount EOAZ-19554-BA or equivalent meeting Ford specification WSK-M2G349-A1 to the bolt threads.
18. Install the differential assembly in the differential housing.