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:

Steering System Symptom Definitions
Drift/Pull Pull is a tugging sensation, felt by the hands on the steering wheel, that must be overcome to keep the vehicle going straight. Drift describes what a vehicle with this condition does with hands off the steering wheel. A vehicle-related drift/p ...

Installation
1. Install the intake manifold and gaskets, tighten the bolts in the sequence shown. 2. NOTE: The O-ring is to be installed on the top of the thermostat. Install the water thermostat and the O-ring. Install a new O-ring as necessary. 3. Install the wa ...

Flywheel Ring Gear
Removal 1. Remove the flywheel. 2. WARNING: This procedure should be carried out only by a correctly equipped and experienced acetylene torch operator. Tongs must be used or asbestos gloves worn when handling the heated flywheel ring gear. Failure to f ...