The short tailshaft A833 was manufactured for A bodies and F bodies.
While all '76 Feather Dusters and Dart Lites used a short tailshaft aluminum case version of the OD833 and it certainly was not all that uncommon in other late A bodies or even F bodies, it doesn't mean all shortshaft OD 833s were. Cast iron case, short tailshaft OD 833s are out there to be found, with or without an aluminum tailshaft housing. With aluminum case 833s suffering the same problem of wallowing out the case around the countergear shaft and eating or wearing out their gearsets that aluminum case Muncie four speeds are renowned for, finding a cast iron case and forgoing the weight savings might prove to be the better move. If your OD gearset isn't alrealy worn out (not likely), stepping up to Jammie Passon's strengthened and bushed replacement aluminum case might be the hot setup, short of getting a complete gearbox from him.
All the OD transmissions used the 308 front bearing and can easily be changed out to a 4.80 bearing retainer by simply bolting one on in place of the 5.125 piece. Turning the 5.125 retainer down to fit a bellhousing with the 4.8 diameter works too, if you happen to have a bellhousing with that size hole.
If the transmission in question has a bearing retainer with the smaller 4.35 diameter, the front bearing is the smaller 307 one, and there is no way it has an OD gearset.
