Question for those of you who have replaced the crank sprocket/Crank sensor blade/locating pins/woodruff key. when I pulled these parts off my crankthe pins where sheared but the key is in tact. when lI looked closer it appears that the keyway in the crank does not extend very far back on the shaft, it looks like the only thing that the key will hold is the timing sprocket. Is the sensor blade and spacer only help on buy the roll pins? They have a key notch in them to accept a key but I just don't see that there is enough key way. Am I missing something?

94 SR DOHC W/broken crank bolt