Here's the stand I use. Started with a $39 engine stand a a few dollars worth of 1" x 1" square tubing and some 7/16" threaded rod. Only downside is that some of the transmissions shields require cutting off the front tabs so nowhere to mount the front with those transmissions. I usually rig up something when one of those comes through. It also works with 904 transmissions but can only use 3 out of the four threaded legs.