4 speed vs 4speed

Uh..........yes and no.............

Although there WERE 833 OVERDRIVE units made which bolted onto GM bells and had GM spline input shafts. I don't recall what their length was.

Here:

http://www.jalopyjournal.com/forum/threads/help-on-4-speed-w-od-transmission-id.386760/

Once again, that is OVERDRIVE and was manufactured specifically for GM applications by New Process. To my knowledge, no straight A833s were made in GM pattern