Welcome Groucho!! Ski woke me from my lawn chair in Cozumel.... no, just kidding, but it was a nice dream. Sounds like the dealer is going to take care of you. If the flex coupler is bad, that would certainly cause the vibration you were experiencing. My two suspects would have been the clutch or flex coupler (aka guibo disc). There are a few items that should be inspected while performing the replacement and should be done by the technician regardless of whether you specifically ask them to or not. The exhaust hangers (rubber pieces) do deteriorate over time and if there is any concern with these it should be noticed upon removal of the exhaust as this is a necessary step to replacing the flex coupler. Next on the list would be the transmission output shaft seal. A quick look at it would tell whether it's leaking at all, if so then now would obviously be the time to replace it. Finally he should look at the transmission mounts. Like any rubber part, just like the exhaust hangers, they do deteriorate over time. Once again, this would be a good time to replace them as well if needed. That's about it. I would ask them to give the car a once over while it's in the air. Most likely the dealer would do this anyway (trying to find more work of course). Hope everything goes well, and if you have any questions don't hesitate to ask. Once again, welcome.
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