OK - it sounds like a good weekend project. I'll have to scope out the 300SD beforehand and do it first. (Practice on my own car.). When I got the MB, everyone told me the diesel engine should last 500K miles, so I figure I'm less than halfway there.
1987 300SDL 265,000 mi.
1982 300SD 325,000 mi. (and holding)
1956 Packard Clipper 150,000 mi.