Not very many old big trucks around my area. In fact, I have the only one I have seen in about 10 years. I was pretty much thinking I would have to make one. The steering box is is forward of the axle with the drag link extending to just in front of the axle with the wheels straight. The pitman moves fore and aft. Looks to be about 17.5 inches center to center and is a straight bar. Looks like the 1 ton, just longer. Just have the measure the big and small end of the tapers and see what I can find.
Thanks,
Randy