A904 Kickdown Lever on Trans not Moving

Almost done with installing a fresh V8 A904 and we're on the middle of installing a Lokar kickdown cable. We hook up the cable, and we try to move the lever on the trans back. It wasn't moving, so we removed the cable and try to push the lever back. It won't : it stops hard when you should start feeling pressure to move the kickdown back. Moving the trans from park to drive or anything else doesn't make it move. The gear selector lever moves fine. The little stud on what the levers rest on moves MAYBE total of 10 degrees. That's free play.

This trans has a TF-2 installed it. Does that have anything do with it? It's not a manual valve body.

This is frustrating. I'm going to call the builder tomorrow in case I missed something, but I cannot find anything that says something causes that kickdown lever to come to a full stop. If anyone has any ideas to test, please let me know, thanks.