Ford Mustang (1999-2004) Service Manual: Gear Howl and Whine

Howling or whining of the ring gear and pinion is due to an incorrect gear pattern, gear damage or incorrect bearing preload.

Wheel Hub or Axle Flange Face Runout
NOTE: If the axle shaft assembly is removed, check runout of the shaft itself. The forged (unmachined) part of the shaft is allowed to have as much as 3.0 mm (0.120 inch) runout. This alone will not ...

Bearing Whine
Bearing whine is a high-pitched sound similar to a whistle. It is usually caused by worn/damaged pinion bearings, which are operating at driveshaft speed. Bearing noise occurs at all driving speeds. ...

Other materials:

Removal
CAUTION: Suspension fasteners are critical parts because they affect performance of vital components and systems and their failure can result in major service expense. A new part with the same part number must be installed if installation becomes necessary. ...

Forward Clutch Cylinder
Special Tool(s) Dial Indicator Gauge with Holding Fixture 100-002 (TOOL-4201-C) or equivalent Compressor, Clutch Spring 307-096 (T81P-70235-A) Protector, Transmission Forward Clutch Outer Fluid Seal 307-423 M ...

Crankshaft Position (CKP) Sensor - 3.8L
Removal 1. Disconnect the battery ground cable. For additional information, refer to Section. 2. Remove the crankshaft position (CKP) sensor. Disconnect the connector. Remove the bolts and the sensor. Installation 1. To install, reverse ...