Using a Floor Jack as a Transmission Jack?

I pulled a big block out of a 64 Dodge a while back. Left the pushbutton Torqueflite sitting in place, rear of the trans still bolted to the trans crossmember, front resting on a floor jack. I didn't plan to leave it there long, but somehow bumped the car just a tiny bit and the tranny fell over, breaking the extension housing and bending the mainshaft. Right after that I bought a trans jack.

When I was a lot younger and stronger, I could pull an A-833 4-speed (heaviest 4 speed ever made) out with my hands and sit it on my chest. Then pull it off my chest and sit it on the floor (or ground, because I didn't always have a floor). And I could reverse the procedure to put it back in. Now that I'm older than dirt, I wouldn't think of doing it without a trans jack.

And yeah, if I had tied the trans to the jack somehow, my accident would not have happened, but with a trans jack you can adjust front/rear and side to side angle of the trans - which is especially helpful in putting the trans back in, whether automatic or 4 speed.