As promised, here is a breakdown of what was done to mash-up an RS-395 and a "Globe Motor" transmission.
The first steps are fairly self explanatory, and I don't have pictures of those steps.
Start by knocking the three roll pins in to release the transmission from the motor. Once the pins are in, just wiggle the two halves apart. For now, set the transmission aside, preferably with the output shaft down so the gears don't fall out.
At this point, you need to remove the pinion from the motor shaft. I settled for the double screwdriver prying method. This will most likely kill the motor for any future use. But once you remove the motor mounting plate, you will realize the motor mounting plate is an integral part of the motor too. So, that motor was going to be useless anyway.
Once you have the pinion off, remove the two torx head screws. The right tool is best, but careful use of an allen wrench will do the trick.
OK, now turn the mounting plate over and remove the retaining clip that is holding the bushing into the plate. It pops right out with just a little tug from some needle nose pliers.
Now the real fun begins. It's time to decide if you need to turn down the back side of the mounting plate or not. It will all depend on the length of the mounting screws you choose to use and how long the motor shaft is.
I chose to turn the plate down so the entire back was on the same plane as the outer rim.
The next step will also be based on how far you turned down the back of the plate. If the center section of the motor prevents the motor from mounting flat against the plate, you may need to drill the plate out to allow it to fit correctly.
While you are drilling the plate, add two holes for your mounting screws.
OK, go ahead and mount the motor on the plate, I know you want to.
Also, take note of the difference in diameter of the motor shaft and the pinion's ID. You will most likely need to make a sleeve to mate the two together.
Start by turning a piece that is .002" larger than the ID of the pinion. Now press the pinion onto that piece. Press it in until the shaft is flush with the surface of the pinion. Cut the other end of the shaft so it extends about .050" out of the pinion. Now you will need to drill out the center of the shaft to about .002" smaller than the motor shaft. (These press fitting measurements work well with 6061 aluminum and the RS-395 motor, YMMV.)
Now line up the motor and the pinion. Make sure everything is square, don't forget to press against the back of the shaft, not just the motor. Press the pinion on until the face of the pinion away from the motor is approximately .375" from the flat surface of the motor mounting plate.
OK, align the holes in the transmission to the holes in the mounting plate and wiggle the two together. Once it is together, knock the roll pins back into the holes and make them flush with the outer surface. It should now look something like this.
The best part of this is that the transmission is bullet proof. This rig is 130 grams lighter than a window motor. It gives you the same torque and 45 RPM more, too.