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:

Convertible Top (Description and Operation)
  Rear Window Glass Assembly The convertible top assembly is equipped with a rear window glass assembly. The rear window glass assembly is permanently attached to the folding top rear window curtain and cannot be opened. The rear window gl ...

Sitting in the correct position
WARNING: Sitting improperly out of position or with the seat back reclined too far can take off weight from the seat cushion and affect the decision of the passenger sensing system, resulting in serious injury or death in a crash. Always sit upright against yo ...

Appendices
GENERAL INFORMATION SYNC® End User License Agreement (EULA) • You have acquired a device (“DEVICE”) that includes software licensed by FORD MOTOR COMPANY from an affiliate of Microsoft Corporation (“MS”). Those installed software products of MS orig ...