Great experience last week...
Called up American Diesel to ask about a few odds and ends, and started getting into whether or not our engine mounts are causing issues with vibration at idle.
Brian asks if my flex plates had ever been changed, dunno - I do know the transmissions were changed, but no idea when. I would hope the flex plates were changed at the same time.
Brian - well, what was the previous owner's name?
Two minutes later, he told me every part that the PO ordered through them, filling in a huge gap in the maintenance history!
Amazing. Turns out the flex plates were changed with the transmission, so I know that's not a problem!
Count yourself lucky if you have Lehmans, cuz you can't get much better support than that.