My neighbor drilled the hole I need in the case and tapped it so I could put the newer rear bearing retainer (that has the mount for the driveshaft PBrake). So today I'm going to try reassembling the original transmission gears and shafts in their original case and see if it works then.
Worst case scenario -- what happens if I decide to run the gear with the three pitted teeth? Is it just noisy or do worse things happen?
Thanks,
John