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:

Symptom Chart
Condition Possible Sources Action Difficult starting Damaged ignition system. Damaged fuel system. Damaged starting system. Damaged charging system/battery. Burnt valve. Worn piston. Worn pi ...

Disc Check
Special Tool(s) Brake/Automobile Brake Drum System with Vacuum 164-R3622 or equivalent Dial Indicator/Magnetic Base 100-D002 (D78P-4201-B) or equivalent WARNING: Dust and dirt present on wheel brake and clutch assemblies may ...

Assembly
All steering gears 1. Install the steering gear in the special tools. Steering gears equipped with travel restrictors 2. Install the travel restrictors. Install new travel restrictors as necessary. All steering gears 3. CAUTION: Place the steering gear at t ...