These DeLorean (Yes, same DeLorean as the car) T40 tugs might have a slip yoke shorty 727. Our shop tug was one of these when I was in the Air Force. It had a /6, shorty 727, 7.17 Dana 60 and reduction gear box. It's been almost 30 years since I've seen one, but since the tug was pretty small, this might have been the perfect application for a slip yoke shorty since there was very little room to work with since the reduction gear box was pretty big.