Ford Mustang (1999-2004) Service Manual: 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

Differential Case and Ring Gear - Traction-Lok

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.

Differential Case and Ring Gear - Traction-Lok

3. Place the base portion of the special tool in a vise. Install the differential differential side gear and differential clutch pack (without the shim) on the tool.

Differential Case and Ring Gear - Traction-Lok

4. Position the special tool hand-tight on top of the differential clutch pack.

Differential Case and Ring Gear - Traction-Lok

5. Install the special tool over the disc and differential clutch pack.

Differential Case and Ring Gear - Traction-Lok

6. Install the nut.

Differential Case and Ring Gear - Traction-Lok

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

Selective Shims

Differential Case and Ring Gear - Traction-Lok

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.

Differential Case and Ring Gear - Traction-Lok

11. Install the differential pinion gear and differential pinion thrust washer assemblies in the differential case.

Differential Case and Ring Gear - Traction-Lok

12. Using a soft-faced hammer, install the differential clutch spring.

Differential Case and Ring Gear - Traction-Lok

13. Install the differential pinion shaft and install a new bolt finger-tight.

Differential Case and Ring Gear - Traction-Lok

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.

Differential Case and Ring Gear - Traction-Lok

15. Using the special tool, install the differential bearings, if removed.

Differential Case and Ring Gear - Traction-Lok

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.

Differential Case and Ring Gear - Traction-Lok

17. Install the bolts.

  • Apply Stud and Bearing Mount EOAZ-19554-BA or equivalent meeting Ford specification WSK-M2G349-A1 to the bolt threads.

Differential Case and Ring Gear - Traction-Lok

18. Install the differential assembly in the differential housing. For additional information, refer to Differential Case in this section.

 

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