Snowman,I remember back in the late `70`s Hot Rod or Car Craft had an article on how to make a 4 speed saginaw ( it was the one to use because reverse was on the main case,not on the tailhousing like borg-warners or muncies.) into a 5 speed using the then plentiful saginaw 3 speed w/OD tailhousing. It was a poorman`s version of the then new-out Doug Nash 5 speeds. The OD was actuated by cable as I remember and a 4 speed shifter was modified to operate the concoction. Maybe you can access this info on their website? Also when I was in the Army in Germany in the mid to late `70`s 4 on the tree was the norm for the average German car. I don`t remember the makes but it is something to go on... Neccessity is the mother of invention... Speaking of poor, I`ve been without a paycheck for so long that when I take any money to the bank, the tellers all band together and sing a chorus of "Me and My Poverty".