Like a few of us, but Doug towards the end, he went to using gear head motors. What you have is one of his later drives with a Pittman gear head motor. As a matter of fact I'm using them on the 27 Baldwin Center Cab drives I'm building for Lou @CLW. Everything beyond the gear head is 1:1. Over the years I've worked on many of his drives and he did a great job and made things that were stout. The gear tower is his own design but axle gearboxes varied because he was having difficulty getting the Ajin/Overland boxes he liked so much. Mush more to the story but that's enough for now.
Jay
