The new flash sensor will look at something other than the magnetic strip on the tone wheel. So yes it will not be necessary. Also, see wsonnenb post above for good explanation.
Gommy, I just had the W58 recall work completed. I experienced the engine stall going 70 mph on the highway. Coasted to a stop on the shoulder and could not restart the truck. If your tone wheel has lost the metallic strip then you will have to get it replaced. This does involve dropping the...