I've been following the discussions of which strut inserts were best for our old 240s, noting that some of the newer cars would not accept a Bilstein HD insert because the it would bottom out in the strut tube. I was especially interested as I had installed a set of in our first 1991 car (sedan) some years back (a tight fit, I had to remove the labels, but the gland nuts fully engaged the threads in the strut tubes).

A few days ago I was comparing the numbers on the data plates on our two 1991s and noted that our cars had different codes/markings for non-ABS struts:

1991 244 (updated with the set of Bilstein HDs) data plate reads "46112," where "46" = non-ABS frnt strut, "1" = 19mm frnt bar, "1" = 4-door rear shock/spring, "2" = 19mm rear bar

1991 245 (currently OEM struts/shocks) data plate reads "60321," where "60" = Non-ABS frnt strut, "3" = 21mm frnt bar, "2" = 5-door rear shock/spring, "1" = 16mm rear bar

By way of comparison, our ABS-equipped 1993 244's data plate reads "623C2," where "62" = ABS frnt strut, "3" = 21mm frnt bar, "C" = 12mm rear spring with HD shock, "2" = 19mm rear bar

Maybe this indicates that there were two different non-ABS struts fitted to various 240s--and why the Bilstein HDs fit some non-ABS cars and not others?

Hope this helps!

Steve A-