If you're going to go to all the trouble to adapt an OD transmission to a stovebolt engine, RUN- - - -don't walk away from the 700R4. The 4L60 is the same mechanically as the 700, but it's got electronic shift controls instead of a TV cable. You can buy a stand-alone computer to control the shifting, and avoid all the hair-pulling nightmares of trying to get the length of travel and rate of movement of the TV cable correct. Of course, a much better option would be to adapt a Ford AOD to the stovebolt engine instead of anything GM has to offer.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!