26-50

26. Use a fine flat Me to remove any burrs or nicks from the ring gear mounting surface.





27. Install the ring gear
1 Position three bolts to align the holes in the ring gear and the differential case.
2 Using a suitable press, install the ring gear.





28. Install the remaining bolts.





29. Remove three adjacent bolts.





30. CAUTION: Position the three empty bolt holes downward.

Position the differential case with the special tools into the differential carrier housing.





31. Position the special tools.





32. Push and rock the ring gear into mesh with the pinion gear (zero backlash) and adjust the special tool to zero.





33. Move the ring gear away from the pinion gear as far as possible. Record the reading on the Differential Bearing Shim Selection Procedure Worksheet, Line B.





34. Remove the special tools.





35. Remove the differential case and the special tools.





36. NOTE: Measure both of the differential be stand heights prior to installing them on the differential case.

NOTE: Mark the left and right differential bearings before measuring them.

Clamp the special tool base in a soft jawed vise with the bearing mounting surface above the surface of the vise.





37. Position the differential bearing assembly in the special tool, and tighten the tool.





38. Measure the differential bearing stand height.
1 Invert the special tool and bearing assembly in the vise.
2 Use a depth micrometer to measure and record the differential bearing stand height.
- Repeat the procedure for the other bearing.
39. Select appropriate differential bearing shims.











Differential Bearing Shim Selection Chart





40. Select the appropriate shim by the thickness or the stripe color.








Differential Shim Size Chart





41. Install the three bolts.





42. CAUTION: Press against the bearing inner cone only.

Using a suitable press and the special tool, install the differential bearings.
1 Position the appropriate differential bearing (RH or LH).
2 Using a suitable press and the special tool, install the differential bearing.
- Repeat the procedure for the other differential bearing.





43. NOTE: Make sure the indicator needle is in the spreader adapter hole.

Install the special tools.





44. CAUTION: Overspreading can damage the axle housing.

Spread the axle housing to the specification.
- Remove the Dial Indicator.





45. CAUTION: Never attempt to drive the differential bearing shim in place. Permanent damage to the machined axle housing surfaces can occur.

If removed, position the differential bearing shims.
1 Apply a light coating of Premium Long Life Grease XG- 1-C or equivalent meeting Ford specification ESA-MIC75-B to one side of the differential bearing shims to help hold them in place.
2 Position the differential bearing shims.





46. NOTE: Push the differential case downward to fully seat the differential bearing caps in the axle housing.

Position the differential case assembly.
1 Position the differential bearing cups on the differential bearings.
2 Lower the differential case assembly in place between the differential bearing shims.





47. Install the bearing caps in their original positions and tighten with the housing still spread.
1 Position the bearing caps.
2 Install the bolts.
3 Remove the special tool.





48. Install the special tool.





49. Measure the ring gear backlash at four places to obtain a consistent reading.
1 Mount the special tools on the indicator base.
2 Position the indicator needle and zero the indicator.
3 Turn the ring gear without turning the pinion gear and record the measurement.





50. NOTE: If the backlash is not within the specifications, correct it by increasing the thickness of one differential bearing shim and decreasing the thickness on the other differential bearing shim by the same amount.

To increase the backlash, install a thicker differential bearing shim and a thinner differential bearing shim as shown.