Nice! DIN 3017A are the ones! They had a little Benz star stamped on each one. The E36 is another one of those legendary chassis where they basically just got it right. I've looked at a few of them over the years but they were all so beat up that I couldn't justify buying. Some day when it finally rots out or the transmission shreds itself or something I will throw the OM606 from my W210 into a better car.. a mechanically governed OM606 swapped E36 would be super cool if it could be made to fit. I'm sure somebody has done it before. OTOH I also have a super beat up NV4500 collecting dust so I could build something cool with that... for now better to just run it.