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:

Gearshift Rail and Fork
Disassembly and Assembly   1. Disassemble the first/second and third/fourth shift rail as follows: Rotate the interlock plate until it is opposite of the shift links. Slide off the third/fourth shift fork and shift link. Separate the link from the ...

Pinpoint Tests - Air Bag Supplemental Restraint System (SRS)
Special Tool(s) 73III Automotive Meter 105-R0057 or equivalent Diagnostic Tool, Restraint System 418-F088 (105-R0012) Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or e ...

Axle
Special Tool(s) 2-Jaw Puller 205-D072 (D97L-4221-A) or equivalent Adapter for 205-S127 205-105 (T76P-4020-A3) Bearing Preload Tool 205-395 (T93P-4220-A) Plate, Bearing/Oil Seal 205-090 (T75L-1165-B) Gauge, ...