On Fri, 22 Sep 2017 22:46:09 -0600, rbowman wrote:

At one time I had a generic alignment tool. It had a number of
interchangeable ends for the various pilot bearing sizes, and a tapered
guide to fit various sizes of clutch bores. However they now have very
inexpensive plastic tools for most popular vehicles. iirc the one I got
was $3 or $4.

I have to openly admit I don't understand this step.
None of the DIYs referenced show HOW to do this step.
So it's just something I wrote - but it means as much to me as it would to
a fifth grader.

I can imagine that there is a shaft that has long "grooves" in it that has
to fit into "something" that has correspondingly long "opposite grooves" in
it.

But I don't have any feel for why a special "tool" is needed to get the two
sets of matching grooves to line up. I haven't seen any pictures of that
yet nor videos. So it's just words to me at the moment and not an image in
my mind.