Ah, ok. I believe in my model year they called that the vss, variable speed sensor. Something I'm going to go ahead and swap out just for giggles so I have a known history. You said you chopped out some wire and put a new plug on. Where'd you get the new plug?
Some models actually have both, or one or the other sometimes.
This is the RSS, you can see the connectors in the picture and it actually has two connections, the main harness and then the sub harness to the connector. I cut out 2 feet out of the main harness and got rid of that sub harness all together
This is the VSS
The VSS is located on the tail of the trans. I got this one when I asked for the RSS originally, which my truck doesn't have.
I got the connector from autozone for 10.00