For those considering replacing the PCS themselves, I've come across information I've not seen in this thread so far, as far as I know from these 12 pages.
I can't remember if this was linked, but it has some good advice:
http://www.automotiveforums.com/vbul...d.php?t=705285
However, I would still remove the pinch bolt from the rack.
Also, according to the LeSabre, Boneville, Olds 88 FSM you don't need the engine support. Instead you support from below with a transmission jack. I plan to use jack stands to support everything from the sub frame.
I expect more trouble pulling the axle, as I don't have a slide hammer.