A bodies used the same length Automatics as the B, C, E bodies but the 4 speeds were shorter so the driveshaft for the auto will be shorter than an original 4 speed in an A body.
I think that is backwards. The auto driveshaft for an A body with a 727 will be too short for an A body 833 swap.
However, if it's a 904 trans it will be the same length as the A body A833, or close enough to work.
I think we are saying the same thing but maybe my wording was a little vague?
A B/C/E 833 and 727 are the same installed length. Driveshafts will swap.
An A body 833 is shorter than a B/C/E - 833 or 727.
So the the driveshaft for the
727 auto will be shorter than an original 4 speed
driveshaft in an A body.
I did not know the 904 was the same as the A body 833. Cool info.