Bails,
Under post ##433725 by Igy on Re: Code 1744 TC Slip fixed,
Igy ordered a valve body from ATC Distribution Group(www.atcdg.com) for ~ US$275. You ask a good question about how to tell if it's rebuilt with the good stuff or just back to OEM parts. I'll let the others fill us in on what to look for...
By the way, I've been driving my car around like you have for the past 2 - 3 weeks (resetting the computer ~ every 5 - 7 miles of stop and go). It still pulls and shifts timely but bang shifts after a while. I hope I can get the TC & VB replaced before a catastrophe!
