Something like this works well.
https://www.harborfreight.com/autom...b-capacity-engine-support-bar-96524.html I have seen several home built versions. I have also done the same with a 2x4 and a ratchet strap. But the last time I pulled the trans in my car I simply put a small bottle jack under the right rear corner of the block. Worked great and it was somewhat adjustable from under the car.
For short term I have used all these options.
For long term I have placed a piece of angle iron across the T bars and put another couple pieces from the rear block bolt holes down to the first piece. MAKE SURE YOU PROTECT THE TORSION BARS. A scratch on the Torsion bars can lead to failure.
I wrap the bar with rubber hose and clamp it with hose clamps. I then use U bolts around the hose to bolt the angle Iron to the Tbars.
A Piece of Angle Iron attached to the tbars also holds up the transmission very nicely when in storage without an engine too.
