Re: Thumbnail in post #4 above

The bar end, and connection to the wheel carrier that is illustrated in the thumbnail is the design used with anti-squat geometry for all W126 model years, both GenI and GenII.

Those GenI cars (the great majority) that do not have anti-squat use the same anti-roll bar (ARB) configuration as the one that is being offered by the OP. The quick way to identify those cars that will accept the replacement ARB is to look at the semi-trailing arms: steel - yes, aluminum - no.

The bottom line is that most GenI W126 cars will accept the ARB that is on offer.