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:

Disassembly
1. CAUTION: Hand tighten the special tool to prevent gear damage. CAUTION: Support the output shaft while using the press to prevent damage to the shaft or gears. Using the special tool and a press, remove first gear, the output shaft rear bearing ...

Removal
1. Remove the differential assembly from the differential housing. For additional information, refer to Differential Case in this section. 2. CAUTION: Record the torque necessary to maintain rotation of the drive pinion gear through several revolutions prio ...

Halfshaft
Special Tool(s) Differential Plug 205-294 (T89P-4850-B) Differential Seal Protector 205-461 Front Hub Remover 205-D070 (D93P-1175-B) or Equivalent Halfshaft Removal Tool 205-475 Steering Arm Remover 211-0 ...