Easiest method to remove tranny/engine bolts

I would leave the trans in.

Now when installing the engine, I like to take 2 long bolts and cut the heads off. Screw 1 bolt -not tight so they unscrew easy-on each side of the bell housing, where the trans bolts go. This way its easier to slip it on to the trans.

Make sure the T.C. does not slip out at all.