Just to add to this. The slant six never had an electrically controlled lockup (except maybe in a truck). That trans did not come out untill after the slant six was discontinued in cars (the electrical trans was not before 1988). I have an electrically controlled lock up V-8 904 trans, and a couple of slant six lockup transmissions. At some future date I am going to see if I can put all the V-8 guts (mechanical parts can swap, I don't know about the electrical parts) in the slant six case.