727 part throttle down shift questions ?

Do you know if I could install a newer valve body into my 64 TF ?
I wish I knew that for sure for you, but it seems I remember there might have been a case change.
I'll bet Tracy would know. Member fishy68

I just took mine off and sold it on the auction for a member here because I changed to an 42RH OD, but I can tell you they are well worth whatever you have to do to get it.
If you can use a newer valve body it should have it on it.