Rear crank seal

["Cliff Davies" <cdavies@holzher.com>]

In the Comp Prep Manual there is mention of
installing the rear crank seal assembly
back to the block using a special tool to line it
up. This is the only place I have ever
heard mention of this. Can anyone tell me if this
is critical?

Same deal on the distributor end float it is in
Bentley's, I have never seen a post on this
subject either. I bet a gasket is put down dizzy
attached and away we go.
Just curious.
Thanks,
Cliff