The last email i got from you was about RPM. Was very good info.
My cars runs about 100 Kph at 3000 RPM. Since my transmission is almost broken I need a "new" one anyway. I'd like it to match the 280SE engine. That's why i was asking about the article numbers. There are a lot of stories about different versions, size of the transmission box, etc.
Knowing this information I will also check the differential ratio.
Does you mileometer still point to the right speed when changing the rear end?