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:

Transmission (Removal)
1. Remove the gearshift lever knob. 2. Remove the console panel gearshift plate. Disconnect the cigar lighter electrical connector, then lift the gearshift lever boot over the gearshift lever. 3. Remove the bolts and the upper gearshift lever. 4. Remove ...

Output Shaft and Direct Clutch Cylinder
Special Tool(s) Compressor, Clutch Spring 307-015 (T65L-77515-A) Protector, Piston Seal 307-080 (T80L-77234-A) Protector, Transmission Direct Clutch Outer Fluid Seal 307-422 Material Item Specification ...

Connecting Rod - Side Clearance
1. Measure the clearance between the connecting rod and the crankshaft. Verify the measurement is within specification. Refer to the appropriate section in Group for the procedure. If out of specification, install new components as necessary. Refer ...