Hi Charles,
The 2U designation would be a tractor engine, that one being a 1950 model
(produced from 1946-1953)
The tractor engine would have things that an industrial engine wouldn't have like the three section lube oil pump, a different pan, engine mounts, governor (possibly), rack settings, fan, etc. but..........all of the bolt ons are interchangeable just so long as you keep track of the puzzle😄 😄
Thanks OM , Going today to work on the engines , Will be communicating
with you about this ,Hopefully will have some pics soon , thanks again !!
Charles .
Charlie: You obviously made it back with the engines. The 2U engine was originally out of a D8 and then put into use on the rail car aparently as a replacement. Keep me posted on your progress. Steve.