I will have a 904 rebuilt to put in as I hear the 727 will not fit the early A trans tunnel without modification...
I have already rebuilt the suspension and installed an 8 3/4" axle with an open 2.76 gear... 10" drum brakes all the way around, but do have a 4 piston KH set-up I can swap in if I decide to... I may just run the drums for now since they are all brand new and already done...