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:

Frame and Mounting
Frame and Body Mounting Torque Specifications Frame Assembly Underbody misalignment can affect front and rear wheel alignment, the operation of the suspension parts and drivetrain operation. Window glass cracks, door and window opening concerns, and air or ...

Driving Aids
STEERING Electric Power Steering WARNING: The electric power steering system has diagnostic checks that continuously monitor the system to ensure proper operation. When a system error is detected a steering message will appear in the information display. WARNI ...

Rear Suspension (Description and Operation)
  Item Part Number Description 1 18125 Rear shock absorber 2 - Rear axle driveline vibration damper 3 5A649 Rear lower suspension arm and bushing (common LH and RH) 4 5560 Rear spring 5 4731 ...