@Brandy re: pancake motor, see this thread:
https://ogrforum.ogaugerr.com/...98#75481396439244298
IMO a pancake motor is better suited to the transverse spur-geared locos like the 2036 and 2046. The work shown in the link above is the first time I've actually seen it done (and the motor used is of unknown quality.) Lionel LTI did basically the same thing when they introduced the 18606 in 1986, and I wasn't impressed by the performance of those late 1980s 2-6-4's.
For longitudinally-motored locos like the Hudson and B6 switcher, a "gear head" in front of the motor, or some variation as proposed by John Acton above would be a better way of lowering the shaft, and getting it closer to its original position. If additional gear reduction isn't desired, Pete's use of a double universal joint works great, and he had the skills to make a custom motor mount to hold a Pittman motor at the required angle.
