pulling a slant 6 out without the tranny attached

i plan on removing the cracked blocked slant 6 in my 68 valiant and I want to leave the tranny in the car because the motors casting numbers checkout that they both match this tranny. I will leave the converter in the tranny as well. So when I dis-connect the motor from the tranny, should i support the tranny at all? Will the front end tend to want to fall down when the bolts holding it to the motor are removed?

Whats the process? Does anyone have a written process?