Another note about the bearing caps/risers that Mattyo brought to light some time ago is to ensure the fasteners are ground down in length just a smidge in a teardown/rebuild so as not to bottom out in the threads and create a hard to find leak after being reinstalled. The bolts may have been shortened somewhat when they changed the thread style, but I seem to recall Matt finding
out the hard way in one of his vids that the bolts were just a hair too long and wouldn't completely seal up the bottom end after some minor decking/surface prep...., if I remember all that correctly.
Please chime in, Matt.