2003 FORD MUSTANG differential

z
If the runout does not exceed the specification, use the new differential bearings for
assembly.
z If the runout exceeds the specification, install a new differential case. For additional
information, refer to Differential Case and Ring Gear — Conventional or
Differential Case and Ring Gear — Traction - Lok ® in this section.
20. Remove the differential assembly from the differential housing.
Installation
All axles
1. Position the ring gear and the differential case. Align the bolt holes by starting two bolts through the holes in the differential case and the ring gear. Press the ring gear on the differential case.
2. Install the bolts. zApply Stud and Bearing Mount EOAZ-19554- BA or equivalent meeting Ford specification
WSK- M2G349- A1 to the bolt threads.
3. With the pinion depth set and the pinion installed, place the differential assembly in the differential housing. Klj . 6 ba
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4. Install a differential bearing shim on the left side.
5.
CAUTION: Always install the bearing caps in their identical locations and positions.
NOTE: Apply pressure toward the left side to make sure the left differential bearing cup seats
correctly.
Install the left bearing cap and loosely install the bolts.
6. Install progressively larger differential bearing shims on the right side until the largest shim selected is installed by hand. Klj . 7 ba
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7. Install the right side bearing cap and tighten the left side and right side bolts to specification.
8. Rotate the differential assembly several times to verify that the differential bearings have seated
correctly.
Measuring backlash 9. Using the special tools, measure the ring gear backlash. zIf backlash is within the specification, refer to Backlash within specification in this
procedure. The specification shown is the full allowable range. For the preferred range,
refer to Specifications in this section.
z If a zero backlash condition occurs, refer to Zero backlash in this procedure.
z If backlash is not within the specification, refer to Backlash not within specification in this
procedure. Backlash Change Required Thickness Change Required
mm Inch mm Inch
0.025 0.001 0.050 0.002
0.050 0.002 0.050 0.002 Klj . 8 ba
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12. Rotate the differential assembly several times to verify that the differential bearings have seated
correctly.
13. Measure the backlash. Refer to Measuring backlash in this procedure.
Backlash not within specification 14. To increase or decrease the backlash, remove the bearing caps and install a thicker shim and thinner shim accordingly.
zIf backlash is not within the specification, increase the thickness of one differential
bearing shim and decrease the thickness of the other differential bearing shim by the
same amount.
15. Install the bearing caps and the bolts. Klj . 10 ba
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16. Rotate the differential several times to verify that the differential bearings have seated correctly.
17. Using the special tools, recheck the backlash.
zIf backlash is within the specification, go to Backlash within specification in this
procedure. If backlash is not within the specification, repeat Backlash not within
specification in this procedure.
z The specification shown is the full allowable range. For the preferred range, refer to
Specifications in this section.
Backlash within specification 18. Remove the bolts and bearing caps.
19. Set the differential bearing preload. 1. To establish differential bearing preload, increase both left and right differential bearing shim sizes by the specification shown.
2. Using the special tool, fully seat the differential bearing shims. Make sure the assembly rotates freely. Klj . 11 ba
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20. Install the bearing caps and bolts.
21. Using the special tools, recheck the backlash.
zThe specification shown is the full allowable range. For the preferred range, refer to
Specifications in this section.
22. Install the axle shafts. For additional information, refer to Axle Shaft in this section.
23. Install the differential housing cover and refill the rear axle with specified lubricant. For additional information, refer to Differential Housing Cover in this section. Klj . 12 ba
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REMOVAL AND INSTALLATION
Axle Housing
Removal and Installation
1. CAUTION: The vehicle must be on level ground and at curb height.
Mark the rear shock absorbers relative to their protective sleeve. zDuring installation, raise the suspension to this reference mark before tightening the
suspension fasteners.
2. Raise and support the vehicle. For additional information, refer to Section 100 - 02 .
3. Remove the rear wheel and tire assemblies. For additional information, refer to Section 204 - 04 .
4. NOTE: If necessary, use Rust Penetrant and Inhibitor F2AZ-19A501- A meeting Ford
specification ESR-M99C56- A to loosen the sensor for removal.
Remove the rear anti- lock brake sensors from the rear disc brake adapters. For additional
information, refer to Section 206 - 09A .
5. Disconnect the parking brake cables and conduits from the rear disc brake calipers. For additional information, refer to Section 206 - 05 .
SECTION 205-
02B: Rear Drive Axle/Differential — Ford 8.8-Inch Ring
Gear 2003 Mustang Workshop
Manual Klj . 1 ba
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9. Remove the stabilizer bar. For additional information, refer to
Section 204 - 02 .
10. Position a suitable transmission jack under the differential housing (4010) for support and strap it securely in place.
11. Remove and discard the nuts and bolts retaining the upper suspension arm and bushings to the differential housing. Klj . 3 ba
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