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:

Air Conditioning (A/C) System Flushing
Special Tool(s) A/C Flush and Purge Machine 219-00022 (part of 219-00023) or equivalent A/C Flush and Purge Fitting Kit 219-00024 (part of 219-00023) or equivalent WARNING: Use extreme care and observe all safety and service ...

Oil Pan
Special Tool(s) 3 Bar Engine Support Kit 303-F072 Lifting Bracket Set, Engine 303-D095 (D94L-6001-A) or equivalent Material ...

Forward Clutch Cylinder
Special Tool(s) Dial Indicator Gauge with Holding Fixture 100-002 (TOOL-4201-C) or equivalent Compressor, Clutch Spring 307-096 (T81P-70235-A) Protector, Transmission Forward Clutch Outer Fluid Seal 307-423 M ...