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:

Engine (Installation)
Special Tool(s) Heavy Duty Floor Crane 014-00071 or equivalent Spreader Bar 303-D089 (D93P-6001-A3) or equivalent Material Item Specification SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP or equivalent ...

Ignition Switch Lock Cylinder - Non-Functional
Removal and Installation 1. NOTE: Make sure the front wheels are in the straight-ahead position. Disconnect the battery ground cable (14301) and wait at least one minute to allow the depletion of the restraint system backup power supply. 2. WARNING: To avo ...

Roller Followers
Special Tool(s) Compressor, Valve Spring 303-452 (T93P-6565-AR) Removal and Installation 1. Remove the LH and RH valve cover. For additional information, refer to Valve Cover LH and Valve Cover RH in this section. 2. Position the piston of t ...