I checked the shifter bushing and there's no play on them. It goes into all the top gears and not the bottom ones. When I try to go into one of the bottom gears, the cable doesn't release enough to push the linkage into those bottom gears. I can literally put it in 2nd, and then by hand, grab the cable on the linkage and pull the linkage/cable the rest of the way into 2nd. I'm guessing the cable must be frayed/some of the strands broken or something inside. I've looked at the linkage from inside, under, all the way out to the hood and everything looks normal.
The woman from Pontiac emailed me back and said that it was discontinued. But I wasn't completely at a loss yet, and that she was "provided with information to provide to a dealership to locate an alternative part that may work for me" and wanted to know which dealership near me that I wanted to work with. So we'll see, I replied. I'll probably get an email back tomorrow.