Ford 2003 Mustang Workshop Manual page 35

The angle of the wheel in relation to the true vertical as measured looking from the front of the vehicle.
Camber is positive when the wheel angle is offset so that the top of the wheel is positioned away from
the vehicle.
Caster
The angle of the steering knuckle in relation to the true vertical as measured looking from the side of
the vehicle.
Item Description
1 Positive caster
2 True vertical
3 Steering axis
Chatter
A pronounced series of rapidly repeating rattling or clicking sounds.
Chirp
A short-duration high-pitched noise associated with a slipping drive belt.
Chuckle
A repetitious low-pitched sound. A loud chuckle is usually described as a knock.
Click
A sharp, brief, non-resonant sound, similar to actuating a ball point pen.