65/66? 904 band specs needed

Does anyone know how many turns to adj the two bands to? It says "65" on the side of the extension housing & has a slip yoke and a single wire backup light switch & has the early (smaller) reaction/input shafts. The #'s on the pan rail are 538338Y 2281676. Thank you for your time.

On the front band, 2 turns out; on the rear band 3 turns out for a V8 and 5 turns out for a /6.

Thank you JK