Is it a 4hp22 or a 4hp24?

[CharMick]

Just about to put an M30 with auto (i know) into an e30 cabrio when I noticed that the transmission (which came from the e30) has 4hp24 stamped on it with a 4hp22 badge. Third picture shows stamp and badge.

For the swap i am using the m30 engine, bell housing, torque converter and the e30 (m20) automatic tranny/pump (less bell housing and torque converter). It all went together smoothly, proper gaps between flex plate and torque converter pads...no forcing required.

I think it will all go back into the car correctly but just seems odd.

Has anyone ever run into something like this? Pictures attached...

[slum dog]

To my understanding the boxes are same its just the internals on the 4hp24 are stronger. Perhaps you just got a 4hp24 casing with 4hp22 internals!!!!!!! That's why you have the 4hp22plate on, reference for servicing............
If everything went on smoothly and no binding in neutral I don't see why it would not work.

I am using a 4hp22 box from a 325i in my 318i M10 similar to you I changed the bell housing and torque converter only.