Freakin crankshaft position sensor.

So I found that a 1/4 inch 13mm on a 6 inch extension works pretty well to reach the bolts... Except the top one interferes with one of the "tabs" on the head and won't come all the way out that way. So I got it out with my fingers, but when I installed the new one, the top bolt slipped out of my hand and flew away.

It's *gone.* Gone gone. I don't usually give up until I've searched for an hour, and this one just flat disappeared. Called up to auto heaven in the rapture by Mechanic Jesus.

So,
a) if the bottom bolt is good and snug, any harm in running without it?
b) anyone have a replacement, or know the size and thread so I can pick up a replacement myself?

 

Where ya at? I probably have a couple.

 

Thanks HeyYou! I'll send you a PM.