The !@#$% dealer inadvertently updated the pcm in my 95 while resetting a fault code, now the torque converter wont lock up til ~60mph. Service manager says nothing he can do, older version software is not available, and a new pcm will have the updated software. Any ideas? The TC used to lock up at ~42mph which was ideal given my around town driving and 4.10 axle. Suggestions and/or ideas are welcome.