I installed the under dash control for the 2 speed Rear on the 48 2 ton. Then the little rear box on the back of the speedo and the linkage. Everything went together fine.
Tonight I was going through the factory assembly manual and noticed that the drawing showing that assembly had the gear box inverted and the linkage arm on the drivers side. I installed it with the linkage on the passenger side because that seems to be the only way the linkage connected.

Can anyone confirm how it is installed in a working truck?