Productive morning!
Everything underneath is back together. Got the DD box wired up and working!! And went for a test drive.
So to determine which pair of wires I was hunting down, I used the old gear vss, chucked in a drill and installed in the factory plug. Spin the sensor, use a chicken stick to find the weak AF AC signal in one of the plugs to the gem. Then continuity check trough that plug to find the two wires. Finally check that circuit for VAC while spinning the sensor to verify. Mine are on the bottom plug, pink/black and grey/black.
For right now, I have Vcc and ground through some power to the the radio circuit, probably should find something different maybe. 4406 sensor directly to the DD box, and the output is currently rigged up with a double meter lead so I could just jam it in the plug for testing. I figured if I used one input and the speedo didn’t work, try the other one… I’ll get pictures of my setup posted later today. Too hot now.
Chose grey/back first, it worked on the H-H output reading 65 at idle with the wheels in the air, maybe 20mph. Adjusted the setting as low as it would go in H-H which is .250 and it got really close! It’s off maybe 2-3% with the current gear/tire combo.
Test drive: Not entirely sure it ever shifted into 3rd, I think it did. 1-2 shifted kinda hard at first and mellowed out. 4hi and 4low all works, and it shift hella while in low range which I kinda like, but won’t go past 2nd. Stopped every few blocks and checked fluid, it went down to the top of the plastic, so it’s now in normal range for hot, if not still slightly high.
Transfer case sounds kinda like straight cut gears in 4low, is that what they normally sound like? No noise in 2hi or 4hi.
O/D off flash the whole time, pulled codes, same stuff. So I’m assuming I can probably find resistance checks on here or in the Chilton or both?