Thanks for the info. Happily, I have a lift so jack stands are not a problem and I'll be dropping the tranny from underneath. I was just interested in any weird items I would need to know about that are particular to this model car.
Glad to know I guessed right on the driveline flex disks. I guess I had one of the oddballs. The rear disk was shredded and hanging on by about 50%. Maybe it was because it was the wrong part? Not as flexible as the correct unit? Broke down over time.

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1999 E320 (gave to daughter) 250K
1994 F150 (may be the end of its road) 240K
1989 560 SL (Reassembly after paint job) 160K
1986 560 SL (deceased., gave it's life protecting my wife)
1988 300 TE (departed)
1994 945T (still running strong with an upgraded cam) 349K
1986 242Ti (deceased)
1968 GT500KR (under restoration)