Ford 2003 Mustang Workshop Manual page 261

Installation
1. WARNING: When a wheel is installed, always remove any corrosion, dirt or foreign
material present on the mounting surfaces of the wheel and the surface of the wheel hub,
brake drum or brake disc that contacts the wheel. Installing wheels without correct
metal-to-metal contact at the wheel mounting surfaces can cause the wheel nuts to
loosen and the wheel to come off while the vehicle is in motion, causing loss of control.
Position the wheel and tire on the vehicle.
2. CAUTION: Failure to tighten the wheel nuts in a star pattern can result in high brake
disc runout, which will speed up the development of brake roughness, shudder and
vibration.
Install the wheel nuts hand-tight, then lower the vehicle. Tighten the wheel nuts to specification
in a star-pattern sequence.
3. Install the center cap, if so equipped.