on my '95 JGC - 5.2/V-8. Any ideas how much that puppy will cost me? I've got about 110,000 miles.

Are you sure the rear main seal is bad? My '95 GC LTD 5.2 and had an oil leak. I was told rear main seal was bad but, on examination I found a bad valve cover gasket and a cracked oil sending unit in the back of the engine. Looks just like a rear main seal leak. Quoted $450 @ local Pep Boys for a rear main seal. Good luck.