I used a pilot bearing removal tool with a grease gun hooked up to an air compressor to remove the pilot bearing. I never done this before & it came out fairly easy(see the 3 pics). Next I put a new pilot bearing in (last pic). I next put the bell housing on & a different 139 teeth flywheel that uses the 9&1/8 inch smaller clutch. Things are moving slowly along but at least they are moving now in the right direction.