Using VSS and also Speedo Cable on 4r70w

[massacre]

I have my engine and transmission installed, my 4r70w uses a VSS
Car uses a speedo cable. I want to use the stock gauges.

My VSS does not seems to have provisions for a cable, so I did some investigation.
There is a white cap on the end of the VSS, where a cable would attach.
I removed the cap, and I could then see the square drive for the cable.
Went to insert cable, the hole in the VSS is a smaller diameter than the cable end.
Through some careful measuring and drilling, I was able to attach the cable to the VSS. I had to change the plastic gear anyways.
When I spin the gear, the square drive turns on the speedometer end of the cable.

So this is encouraging news. I ordered a new cable so when I install the cable this weekend I can post pics of the modification.

I would love to test the electrical portion of the VSS just to make sure it is still functioning properly.
gotta look into that, I must have a manual here with the test procedure.
The ECM uses the VSS for certain functions, I think for converter lockup, and unlock on deceleration.