[19Fordy]

Here's what it looks like after you do as Tim says. You can see that the U-joint is still bolted to the transmission main shaft. With U-Joint removed there's more room to remove the transmission from the top. A special bolt and cupped Bellevue washer bolts the U-Joint in place on the main shaft. Check your U-Joint for "play". Don't loose it and make sure to reinstall it properly nice and tight. No torque specified, that I know of.

Of course, it's easiest to remove transmission with front seat removed. I used tapered wooden "door stops" to raise up floor pan so front of torque tube would "clear".
Don't loose those special square headed bolts at the bottom of the clamshell. Take photos of everything you remove and write down the order of removal of each part. Take plenty of photos making sure that everything you remove goes back in place in its proper sequence and position.

Photo six shows those bottom 2 clamshell bolts. Photo seven shows Bellevue washer and bolt. Lock washer is also used.
One last thought: Don't pinch your fingers when inserting splines into U-joint upon reassembly.