Here is what I use..... It is a custom made trans building stand that was really made for RWD transmissions, that is why the hole is in the middle so I can stand the case straight up and the output shaft goes in the hole. For GM and Ford FWD transmissions I use it in this arrangement just as a pedistal with some blocks to keep the bellhousing area of the trans flush on my bench. Straight up and down is the best to work with, if you just try putting it together on its side at an angle it is going to be hard to get everything lined up and stay put.
