Transmission goes into gear but does not move

Welcome back to 2CarPros. That sounds like front pump failure or a band failure. They also have had an issue with the sealing rings but those usually show slipping first.
Either one means pulling the transmission for a rebuild or replacement. Because these transmissions are fully mechanical there isn't something like a solenoid failure causing it.
You might want to check the fluid level just to be sure it isn't something like a failed cooler line, but usually that would create a big puddle that you would notice.
That should have either an A727 (most likely) or the A904 transmission.

Thank you.
Going to get a rebuild kit.

Steve,

What rebuild kit would you recommend?
There are some on EBay that I’m not to sure of.

I normally ship out rebuilds to a local shop. However, if I build one I normally use either TCI or ATP parts. However I generally also modify them a bit. I believe Rock Auto has ATP kits. Biggest thing will be to verify the exact transmission you have first. The easy way to tell the basic transmission is the pan outline.