I got a replacement transmission for my 81 300SD. It's marked 722.315 which I believe makes it a transmission out of an 82-85 300D/CD/TD. It is physically identical to the original transmission.

The only concern I have is that the SD is heavier than the average W123, however, I have to think the GVW of a 300TD is not much less and possibly greater than the GVW of an SD.

Any thoughts?

Thanks,
Sixto
91 300SE
81 300SD