cgallant,

The center bolt of the puller has a flat surface to mate with the crank end. I did not use any type of adapter. I'm not too concerned about the crank end because I have a new crank to install.

I used the puller exactly as you described. I applied very light oil to the 27mm male threads on the outer part of the puller and made sure it was screwed all the way in. Then I used my 18-inch breaker bar to apply torque. The flywheel would not budge. I thought I had the flywheel loose but realized the outer part of the puller was pulling out of female threads of the flywheel. The male threads on the puller are stripped. I can't really see the female threads of the flywheel very well and I hope they are not stripped as well. I'm going to try a new puller and see what happens.

Thanks for the response. Any and all advice is helpful.

Skunkbait.