Done mounting the main transmission.  The last task was to shim the hood bearing so that there is less than 5 mil clearance between the alignment ring and the bearing top surface.   I rotated the check ring to account for imperfections in the check ring - 4 checks 90 degrees apart.  In one orientation the 0.005 feeler slides in between for an arc of about 20degrees.  Since I plan on alodyning these shims I will reexamine after that is done since that will thicken them up slightly.