These flanges/splines are a 124 part but were used on a few models. They c-clip into the differential and have 6 bolt holes for attaching annular axles. They should also be easy to ship in a priority flat rate box.

Can you post a photo?

The flange is shown attached to the axle via bolts. Often the flanges are left in the differential. The other axle is one piece end to end.

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I have the flanges. I am parting out a 1995 W124 now.

I am in New Braunfels

Please PM or email

Kind Regards,
Scrappy

Quick questions here if it helps me and others get more clarity, do you feel that this reference is accurate?

https://mbturbo.com/gear-ratios/

Where it says "The differential is the same on a w114, w115, w116, w123 and w126 (first generation)" does it mean that while a W124 differential itself won't interchange all of the W124 flanges listed will? Some of the flanges are different/thicker yet they don't put part numbers on them.