Darren, thanks for the offer on the shims but Ram says my new bearing will come with both sizes. I plan to send the old bearing to them to rebuild for a spare. I don't expect that they can confirm why it failed. I believe that it could be something with alignment or damaged while installing the gear box. I have had the trans on /off several times and it normally is a wrestling match.
Andrew,
The Ram bearing face just pushes on and off with little effort but it slides over the outer shoulder as shown in picture below. I thought they were all like that?
