Firstly, to change this inflatable restraint steering wheel air bag clock spring you will first need to disable the sir system and remove the steering column trim covers first. Remove the wire harness assembly from the wire harness strap and the three wire harness straps from the wire harness assembly, and the wire harness strap off the upper tilt head assembly. Subsequently, remove the sir steering wheel air bag clock spring retainer clip and the sir air bag clock spring, as well as take out the wave washer from the steering column upper shaft. For installation line up the block tooth on the upper shaft to the 12 o'clock, see that all fasteners should be fitted before applying the required torque to avoid component damage. Mount the wave washer onto the steering column upper shaft to ensure the sir air bag clock spring is aligned, because it may get misaligned when the steering column is removed from the steering gear or when the centering spring is compressed. If uncentered, the appropriate centering, standard or tilt column. Mount the clock spring in the middle of the turn signal cancel cam and slip the pre-centered clock spring onto the steering column upper shaft. Take off and throw away the centering tab, and carefully pull along the lower clock spring assembly wire to remove any kinks, which should avoid bending with a potential interference with the shaft lock mechanism. Mount the sir air bag clock spring retaining ring, making sure it is properly fitted into the groove of the upper shaft. Bring the wire harness assembly and place it back onto the wire strap, install the wire harness strap to the wire strap, and fasten the wire harness straps to the wire harness assembly. Lastly, re-install the steering column trim covers and switch on the sir system.