How the hell would I know? Do I have the valve body in front of me? The Torqueflite valve body is not a wear item. They said "something" is bent and yet, you don't know what?
Aren't you the least bit curious as to what is bent? I've been in this business since 1974, yet I have never, ever, in my entire life heard of a Torqueflite as an "accuride" transmission.
Aren't you the least bit curious about why a veteran mechanic with over 40 years experience has never heard of that before? Sounds fishy to me is all.
And no, I don't know everything by a long shot.....what I know would fit on the head of a pin......probably a few times.
Lastly, it's not MY place to tell YOU why YOUR SHOP is wrong. It is THEIR PLACE to tell you why THEY are right.
Like I said before, Torqueflite valve bodies don't just "go bad". I have seen manual valves get bent from binding linkage, but those are easily replaced.
Were I you, I would get a very detailed explanation of what I was about to pay for.......or better yet, I would be doing it myself.
Like I said. Good luck!