a833 with 904 yoke??

My 68 Dart has the small output 833- it is weaker than the one with the 30 spline output but its ok for street small blocks on street tires, I tried drag radials and managed to split the slip yoke.

My car is an early 68 car, it has a bunch of 67 style parts on it and was a 273-2 833 car.