Thanks Don,.... No, I am not having any transmission problems at all. I was just sort of wondering, with the non-interchangability you spoke of, could I even get an engine from 2004/2005 S80 to bolt up to it without any issues. Not to mention possible software upgrades, and so on. If I found a newer...

Thanks for the tip,..... now if only I could find one that only has 30 or 40 thousand miles on it

Hello All, I own an old, tired (140K), "in need of a valve job" 1999 S80 T6 and was wondering if anyone out there could advise on dropping in a different S80 engine. I know that the first generation was from 1999-2005 and I assume that not much had changed during that time, engine wise. My...