For 1990-2009 cars

Important: A new SIR coil assembly will come pre-centered.

1. Hold the coil assembly with the bottom up.
2. While holding the coil assembly, depress the spring lock in order to to rotate the hub in the direction of the arrow until it stops.
3. The coil ribbon should be wound up snug against the center hub.
4. Rotate the coil hub in the opposite direction 2 1/2 revolutions.
5. Release the spring lock between the locking tabs.