Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
2. Rotate the coil hub slowly, counterclockwise until the centering window appears yellow and both arrows (2) line up. This is the CENTER
position.
3. While holding the coil hub in the CENTER position, align the SIR coil with the horn tower and slide onto the steering shaft assembly.
4. If the front side (3) of the SIR coil has NO centering window, but the back side (2) includes a spring service lock (1), perform the following steps:
0. Hold the SIR coil with the back side up.
1. While depressing the spring service lock, rotate the coil hub in the direction of the arrow (4) until the coil ribbon stops.
2. Still pressing the spring service lock, rotate the coil hub in the opposite direction 2½ revolutions.
3. Release the spring service lock between locking tabs. The SIR coil is now centered.
4. Align the centered SIR coil with the horn tower and slide onto the steering shaft assembly.
5. If the front side (2) of the SIR coil has NO centering window, and the back side (1) includes NO spring service lock, perform the following steps:
0. Hold the SIR coil with the face up.
1. Rotate the coil hub in the direction of the arrow until the coil ribbon stops.
2. Rotate the coil hub, slowly, counterclockwise, for 2½ revolutions. This is the CENTER position.
3. While maintaining the coil hub in the CENTER position, align the centered SIR coil with the horn tower and slide onto the steering shaft
assembly.
6. If double wire harness strap is installed onto the wire harness assembly and column, you must route the wires up against the steering column. One
wire harness strap will surround one lead from the coil to the steering column. The other wire harness strap will surround all leads to the steering
column.
