360 in a 65 dart

Post a picture of the trans and it'll get identified, or somebody here will tell you the difference is in the trans pan...a 904 has a square pan and a 727 doesn't...or something like that...as far as the rear, again you can post a picture and somebody will identify it what size it is, 7 1/4, 8 1/4, 8 3/4..as far as what gear it is it may have a tag on it which may or may not be correct, you'll have to open it up and physically look at the gear to be sure.