To remove the transmission by lowering it (and, not worrying about marring anything in the cab):
After removing u-joint assembly, I use
this procedure described in the Shop Manuals - steps 11 an onwards. [added later: this is basically the procedure described by klhansen]
I have a small/large rolling jack/lift positioned under the transmission.
The "pins" are simply long bolts with the hex head cut off.
