Slip Yoke ? for 1966 Barracuda F/S - 833 trans

The 66 833 trans has a smaller slip yoke than 1967-up, my 1966 833 trans has the same yoke as the 3-speed manual that came out of my car, think its the same as a 904 auto as well. My rebuild kit came with a larger rear seal and wouldn't fit, figured out that the 66 A833 is a 1-year only trans with a different low gear set and yoke.