Third,
Thats the way the book said to do it. with the flywheel locked up.
I think you need a special tool to re-set the new sensor.

"technically" yes, but we got it without it.

That'* what I ended up doing.. had my brother get under the car and hold it in place with a pry bar we had laying around.

FWIW, I didn't need the harmonic balancer puller. It slipped right off once I got the bolt off.

To install the new sensor, you're supposed to use a feeler gauge to make sure it has (I believe) .020" clearance from the part of the back of the harmonic balancer that spins around it, if that makes sense.. I personally just made sure it was as damn close to the original one as possible, and it at least isn't rubbing

I also replaced the serpentine belt hoping it would cause a squealing type noise to go away, but it didn't seem to have helped. The car also makes some squeal like noises when you turn the steering wheel. Are these symptoms of a bad power steering pump?

So hopefully this will fix the problem we were having with the car not wanting to start once it is warm. It has been sitting for 6+ months...

Thanks again for the help.