Greetings from a new member, I have a 55 Special, rebuilding dynaflow, need some info. I have read somewhere but cant find in my Buick books: what is the proper converter depth in relation to the bell housing face, minimum and maximum? I am also looking for reference material on dimensions of various parts,ie: reaction shaft length. I need to determine if I have some mismatched parts in trans or converter that would explain failure of front pump AND end of reaction shaft. Thanks for any help, TexasJohn55