Ford Mustang (1999-2004) Service Manual: Installation
1. Inspect the rear axle pinion flange seal journal for rust, nicks, and scratches prior to installing the flange. Polish the seal journal with fine crocus cloth, if necessary.
2. Lubricate the rear axle pinion flange splines.
- Use SAE 75W-140 High Performance Rear Axle Lubricant F1TZ-19580-B or equivalent meeting Ford specification WSL-M2C192-A.
3. NOTE: Disregard the index marks if installing a new rear axle pinion flange.
Position the rear axle pinion flange.

4. Using the special tools, install the rear axle pinion flange.

5. CAUTION: Do not under any circumstance loosen the nut to reduce preload. If it is necessary to reduce preload, install a new differential drive pinion collapsible spacer (4662) and nut.
Tighten the nut to set the preload.
- Rotate the pinion occasionally to make sure the pinion bearings (4630) (4621) seat correctly. Take frequent pinion bearing torque preload readings by rotating the drive pinion gear with a Nm (inch/pound) torque wrench.
- If the preload recorded prior to disassembly is lower than the specification for used bearings, then tighten the nut to specification. If the preload recorded prior to disassembly is higher than the specification for used bearings, then tighten the nut to the original reading as recorded.
- Refer to the torque specification for used pinion bearings in the Specifications portion of this section.

6. CAUTION: Align the index-marks.
CAUTION: Install the driveshaft with new bolts. If new bolts are not available, apply Threadlock and Sealer EOAZ-19554-AA or equivalent meeting Ford specification WSKM2G351- A5 to the threads of the original bolts.
CAUTION: The driveshaft centering socket yoke fits tightly on the rear axle pinion flange pilot. To make sure that the yoke seats squarely on the flange, tighten the bolts evenly in a cross pattern as shown.
Connect the driveshaft.

7. Install the rear brake calipers.
8. Install the rear wheel and tire assemblies.
9. Lower the vehicle.
Removal
1. Raise and support the vehicle.
2. Remove the rear wheel and tire assemblies.
3. CAUTION: Remove the rear brake calipers to prevent drag during the
drive pinion
bearing preload adjustment.
CAU ...
Pinion Seal
Special Tool(s)
Installer, Drive Pinion Oil Seal
205-133 (T79P-4676-A)
Removal
1. Remove the pinion flange (4851). For additional information, refer to
Drive Pinion Flange in this
sec ...
Other materials:
Disassembly
1. Inspect the clutch cylinder thrust surfaces, piston bore and clutch plate
serrations for scores or
burrs. Minor scores or burrs may be removed with a crocus cloth. Install a new
clutch cylinder if
badly scored or damaged.
2. Check fluid passage in the cl ...
Air Bag Disposal - Passenger, Undeployed, Scrapped
Vehicle
Remote Deployment
WARNING: Always wear safety glasses when repairing an air bag
supplemental restraint
system (SRS) vehicle and when handling an air bag module or safety belt
retractor/pretensioner assembly. This will reduce the risk of injury in
t ...
Removal
NOTE: The convertible top hydraulic components are removed from the vehicle
as an assembly. The
hydraulic components are individually repaired and the system must be bled
before being installed into
the vehicle.
Hydraulic system
1. Unlatch the convertible to ...
