Road Test - Ford 2003 Mustang Workshop Manual

Pinion Shaft
The input shaft in a driving axle that is usually a part of the smaller driving or input hypoid gear of a
ring and pinion gearset.
Pitch
The physical quality of sound that relates to its frequency. Pitch increases as frequency increases and
vice versa.
Pumping Feel
A slow, pulsing movement.
Radial/Lateral
Radial is in the plane of rotation; lateral is at 90 degrees to the plane of rotation.
Item Description
1 Lateral runout
2 Radial runout
Rattle
A random and momentary or short duration noise.
Ring Gear
The large, circular, driven gear in a ring and pinion gearset.

Road Test

The operation of the vehicle under conditions intended to produce the concern under investigation.
Roughness
A medium-frequency vibration. A slightly higher frequency (20 to 50 Hz) than a shake. This type of
vibration is usually related to drivetrain components.
Runout