#5207 here, at 100K miles now with a code-free transmission. I will post the build date when I get out to the storage garage it is in. Not sure of any transmission work previously (I guess I can find out from the selling dealer). I know the second owner , I'm the third, and all he did at 78K was the T-belt then I came in at 84K. I do know the first owner had the MTM TCU put in along with the ECU early on...knock on burl that things remain strong in there.