11Echo,A couple pics.
Do you have access to this transmission to take additional pics/measurements?
I'm curious on things like: hose diameters, build tag/serial data plate, overall length as shown, hopefully a pic of the heat exchanger/cooler, maybe a 'head-on' shot showing the input flange.
The military tends to overbuild things, so I'm wondering if the stock cooler is sufficient to support the 643.
A good guy following this thread has offered a 643 housing to test-fit in my truck (that presently has no transmission installed). Part of me wants to do as Rusty suggested, rebuild the 1545 as a 545, and just drive it/put it to work. But the other part of me is the guy who had a '51 M37 with disc brakes, a 318 and chromoly axle shafts. So...