When installing the steering shaft, it is imperative that the cam at the end of the steering shaft be centered within the canceling ears of the turn signal switch. If it is not located in the center when the wheels are straight, one or both of the directional signals will not cancel. In order to properly install the shaft, first ensure that the wheels are in a straight line and install the two halves of the steering shaft together but leave the clamp loose enough to slide but not rotate. Align the cancel cam so that it is directly between the two cancel ears of the turn signal switch. Then slide the lower shaft into the coupler on the steering rack using care not to turn the shaft. Secure the coupler bolts and inspect the cam to ensure it has not moved. Then proceed to adjust the position of the upper shaft so the end is below the horn ring but still within the turn signal switch ears. When it is properly adjusted, tighten the clamp that secures the two halves. Operate the vehicle to ensure proper operation of the turn signals and horn circuits. If the horn operates intermittently without actuating the horn button, it probably means that the shaft needs to be readjusted.