From a complete stop, my '03 SS 78,000 miles will either rev up when put in drive without moving or rev up instead of shifting after 2k -3k rpms. Also I'm almost sure it down shifted way too late yesturday (got over 4k rpms doing about 45 mph ). Yesturday sucked, my amp blew too. Oh yeah I just had my 60,000 mile maitenance done a little late back in March but this is a new issue.

 

Oops. Spelled TRANSMISSION wrong.