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:

Range Selection
The transmission has six range positions: P, R, N, (D), 2 and 1. Park In the PARK position: there is no powerflow through the transmission. the parking pawl locks the output shaft to the case. the engine can be started. the ignition key can ...

Starter Motor - 3.8L
Removal WARNING: When servicing starter motor (11002) or carrying out other underhood work in the vicinity of the starter motor, be aware that the heavy gauge battery input lead at the starter solenoid (11390) is "electrically hot" at all times. A prote ...

Assembly
Initial assembly 1. Coat the new differential drive pinion bearing cup(s) with lubricant. Use SAE 75W-140 High Performance Rear Axle Lubricant F1TZ-19580-B or equivalent meeting Ford specification WSL-M2C192-A. 2. Using the special tool, install the diff ...