Don’t forget Gary Croan at Bristol Service Company when it comes to looking for AOD adapters for the Y-Block. His adapter is not near as thick and may alleviate some transmission fit issues. As far as I know, Gary doesn’t have a website but his contact information is as follows:
Bristol Services
711 West 17th Street, Suite F11
Costa Mesa, Calf. 92627-4354
(949) 722-1122 9AM-10PM Pacific Time