Identification Of R33 Diffs

[17psi r33]

hi i am trying to identify a diff for the r33 gts i have two numbers off the different diff the auto one has (43moo) the manuel has (43foo) if these are not the markings im looking for then what should they be and where should i be looking?

[R33 0wnerrr]

Where on the diff did you find those numbers? i also have an auto diff on my manual gts25t

[bubba]

Take the back cover off and it should say on the crown wheel somewhere what the ratio is (i.e. 43:11 meaning 43 teeth on the crown wheel and 11 on the pinion = 3.9:1)