What are your plans for the pilot bearing? I installed a NWC T-5 behind my Desoto flathead 6 in my 1948 Plymouth. For a blow by blow of how I did it follow this link. I have a 3.55/1 differential and use first gear all the time. Works well for me.
http://www.jalopyjournal.com/forum/showthread.php?t=74221&highlight=coatney+t-5
