I pulled the engine on a 98 12v auto 4x4 a couple of years ago. At the time I posted a break down on the job, a search on my name might yeild a little useful info.
I did seperate the auto transmission from the engine, pulling the engine only. It was a pretty straight forward job, just a lot of work.
A few searches will yield a lot of helpful info.
Good luck,
RJR
ps, just re-read your post, and no, you don't remove the head. I did fab up a lift bar that hooked into the lift tab on the left rear of the engine, it was adjustable which made getting the tilt just right to clear everything.
You do need to remove the entire front of the truck, including the intercooler and all ac components. No need to break any ac seals, loosing coolent and pressure, just bolts, swing out of the way and secure.