I was going to just add to my existing post, but figured this subject might be better on its own,
Could someone double check my thoughts on the shifter plumbing,
In the pic the left most lower fitting is supply air to the range portion of the shifter, with the selector down it supplies air to fitting farthest to the right, engaging low range,
When the selector is "up" supply air is blocked & the far right exhausts air out the shift knob, this allowes the transmission to shift to the high side & also supplies air to the splitter portion of the shift knob via the upper left fitting (green hose in the pic)
That supplied air is used to shift the splitter, (air to the splitter for high,then supply air blocked & the line to the splitter is exhausted through the shift handle for low)
Is this mapped out correctly?