Bear with me as I try to explain this.

I have a '68 RR 383 4-speed car.
I just acquired an A-833 O/D trans.

It's an aluminum case trans with a cast iron tail shaft.
The tail shaft has dual mounting bosses for the shift linkage. The forward mounting bosses are tapped while the rear bosses are there but not tapped.

While comparing the two transmissions, it seems that the rear mounting flange on the O/D trans for the cross member seems to be about 3” more forward on the trans tail shaft than my stock transmission.

Correct me if I’m wrong here, but after doing some research it seems that the tail shaft with the duel shifter mounting locations were for later model B/E bodied cars.

Would an A-833 with the duel shifter mounting bosses have a different rear cross member mounting location than my ’68 transmission would have?

Thanks
Frank