Crankshaft turn question

Get a wrench to fit crank pulley belt have opening to see flywheel, you may have to pull starter if no shield for access then use wrench to turn engine over to get to torque converter bolts.

Different person,

Same method.

Turning a crank is turning a crank.

Lets make sure the key is "off" and "out" of the switch

See the picture of my Jeep CJ-5 below (a ratchet, extension socket might be needed if your pulley is deep).

The Medic

There is no drain for the torque converter so do not bother.

Pull one of the cooling lines on transmission and start vehicle up until it all comes out. Leave In park and block wheels when doing this.

You need to do a continuous flush, if you just run and drain till it stops flowing you can do internal damage, there are machines to do this job but it is a specialist piece of expensive equipment, and you do have to use a lot of transmission fluid to get a good result, this may be best left to a trans specialist to do, if you want to try it at home, you have to pump oil into the transmission at the same rate as it is being pumped out, this can be done via the cooler lines, the filter will have to be replaced as well.