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:

Accessory Drive (Description and Operation)
Component Locations- 3.8L   Component Locations-4.6L   ...

Striker Adjustment
NOTE: After adjusting the door latch striker plate, verify that the door can be closed easily and fits tightly. 1. Loosen the door latch striker plate bolts. 2. Reposition the door latch striker plate from side to side or up and down as necessary. ...

Digital Transmission Range (TR) Sensor
Special Tool(s) Alignment Gauge, TR Sensor 307-351 (T97L-70010-A) Removal 1. Disconnect the battery ground cable. For additional information, refer to Section. 2. Raise and support the vehicle. For additional information, refer to Sectio ...