Is it 4wd? If so, drop the front driveshaft!!
I've been able to change the CPS on an 88 4.0/auto/4wd by dropping the front shaft and making friends with a 12 pt 11mm wrench. And no, I don't have small arms.
If you're feeling lucky you can get a jack on the trans, and pull the crossmember bolts out of the framerail to lower it down.
If you're feeling really, really lucky, that is.