727
I have one but it is still in the truck. A 78 W100 full time 4x4. Im not sure why anyone would want a truck set up like that, but there it is.
A slip yoke wont fit the bolt on yoke 727 output shaft, but you can change it over to a slip yoke style shaft and tail housing and it will work fine.
I think the 727 should fit any year slant as long as the converter snout coresponds with the back of the crank. Please correct me if im wrong....
Why a 727 anyway?