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:

Automatic transmission
WARNING: Always set the parking brake fully and make sure the gearshift is latched in position P. Turn the ignition off and remove the key whenever you leave your vehicle. Your vehicle has been designed to improve fuel economy by reducing fuel usage while coas ...

Output Shaft
Special Tool(s) Pinion Bearing Cone Remove 205-D002 (D79L-4621-A) or Equivalent Spiral Snap Ring Replacer 308-096 (T85P-7025-A) Disassembly 1. Using the special tool and a press, remove the third/fourth gear synchronizer asse ...

Interior mirror
WARNING: Do not adjust the mirror when your vehicle is moving. Note: Do not clean the housing or glass of any mirror with harsh abrasives, fuel or other petroleum or ammonia based cleaning products. You can adjust the interior mirror to your preference. Some ...