Finally got back home(trk drvr)and have time to upload a few things.I know theres a lot of folks out there scratchin' their noggins over hydromatic problems.I was lucky enough to score a '56 GM service manual earlier this year and thought I'd share.Hope this helps.
With the limit on how much I can upload I'm posting the rest on my photobucket account.More to come as time allows. HTML: http://photobucket.com/lugnut9032