Fopar,
Yes the 383 will take an A833 4sp. That is the exact setup of have in my 69 Road Runner, including the overdrive gears, I have one A833 setup with standard gears for typical fun and one setup with the overdrive gearing for trips or touring. Much easier to swap the whole tranny than to keep changing the gearing back and forth.
You'll have no problems mating the tranny to the engine. It's the body application, you'll have some fun with. There are basically 2 different types of 833 in the 1969 era and the primary difference is in the location of the shifter mount location. For B-bodies the shifter mounted right behind the case, but on E-bodies it was mounted toward the rear of the tailshaft. Here is a link to a great tech article that you should find helpful.
http://www.slantsix.org/articles/4-s...fourspeed1.htm
Do you have the tranny yet or you just starting to look around?
Marc
moparmarcus@69roadrunner.org
www.69roadrunner.org