Good news the transfer case and front differential have a standalone harness making wiring it alot easier this is the harness for the transfer case I just pulled our of the z71.
The next two pictures are the vss signal plug connector on the tailshaft
Next is the 4wd indicator plug it's rite above the 4wd shifter
The next connector plugs into the transmission harness I think it connects the circuit to the 4wd fuse and the 4wd indicator lights inside it's the big gray one in the next picture
Then coming out of the harness next to it is a plug for the vss signal to connect to the transmission wiring harness.
From there it goes over the Trans thru a tube that is bolted onto the studs that hold tranny to motor then it is held held to the passenger side frame with
The starter wires then it goes down and plugs into the front differential. This is the plug for the differential.
Hopefully the Tahoe has similar plugs on its transmission harness for the big gray shift indicator plug and the speed signal plug I am betting it will but still haven't crawled under the Tahoe to look. And I finally got the clutch pedal and master cylinder off the z71
The hole for the clutch master is 2 inches in diameter but my holesaw wouldn't cut it so I got to go get another 2 inch hole saw and probably a mini torch to heat the z71s drive shafts so I can put new u joints in them before I put them in the Tahoe. I got the retaining clips off the rear drive shafts u joints but even the bfh ain't getting them out. The front ones have the stupid injected plastic to hold them on so it's got to be heated to melt the plastic enough to let the u joints out.
Dneel81 do you have a link to your thread?