This one came out of a what version w126 ? It's got the smaller fins- I'll head to the yards and take a pic of a larger finned diff. I think the first gen w126 500 sel came with either version- but the larger finned version is a 2.27 LSD. I better have ALOT of power gain with the Myna pump to have that low of gearing....
Too bad the russian vin site is down to find out by vin if the diff is a LSD.