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:

Radiator
Material Item Specification Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) (yellow color) WSS-M97B51- A1 Removal and Installation NOTE: Radiator removal and installation is similar for both 3.8L and 4.6L vehicles. ...

Anti-theft system
The active anti-theft system is designed to warn you in the event of unauthorized vehicle entry and is also designed to help prevent unwanted towing of the vehicle. You can choose what is monitored by arming the system in different ways. Partial Monitor Mode ...

Vehicle certification label
The National Highway Traffic Safety Administration Regulations require that a Safety Compliance Certification Label be affixed to a vehicle and prescribe where the Safety Compliance Certification Label may be located. The Safety Compliance Certification Labe ...