As the topic states I think the part number which I think is a bilstein part # is B4-B36-U242E2. this nut has a large hole to fit the bilstein insert into a boge strut that normally has a smaller shaft boge or I guess koni insert. I need two.

Does anybody know a knowledgable supplier I can call to get them.

Ok, I got what I wanted from bilstein, I finally got a phone number and someone that knew what was what, it is Victor at 1-858-386-5900. 50.00 + shipping But the wasted time is done.