From what I can tell, the size, pitch and spacing of the flywheel teeth are the same whether it is on the Torque Converter of a 904 or 727, OR a manual from a slant six 9" clutch up to the truck 11" version. The mounting bolts and centering recess in the bellhousing determine where the starter fits. In theory, any starter that fits any slant six should fit almost any other traditional Mopar slanty, V6 or V8.