Thanks Ken. I know that a 3-speed was standard equipment on a 50 3/4-ton; mine happens to have a 4-speed. I really love that low 1st gear, though really to date I have not needed it for anything. The first AD 3/4-ton I had 20 years ago was a 55.1 with a 3-speed and 1-piece open drive shaft. The 3-speed/OD is a viable option.