Body mounts can be replaced without pulling the body, but you DO have to jack the body up. Removing ALL of the mount bolts first, of course. You can jack one side up at a time, and replace the mounts on that side, then do the same on the other side.
If your mount brackets are pretty rusty, you might be in for a pretty big job, as the bolts may very well be stuck solid. I would suggest spraying all of the mounts and bolts down with PB Blaster(or equivalent) for days, maybe even weeks before attempting to loosen/remove rusty bolts.
"ROCKRDR" just replaced his body mounts recently....there is a thread on it here summers....might post any questions about how he did his in that thread, and get some good helpful info.
https://www.c3vr.com/vrforums/body-pops_message440916.html
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