Originally Posted by Sev

i was just at the yard today and saw a late 123 wagon with ate caliper. caliper didn't look much larger than the sedan wagon, so i decided to grab the bendix rear caliper and rotor off a sedan and put it side by side with the wagon rear caliper--pretty much identical. pulled off the rotors, they were exactly the same diameter, hat height, thickness, everything.

so the question is, are there any rear bolt-on rotor/caliper for the w123 sedan? i'm about to do the w126 front brake install, but i don't want brake bias for the rear.

also for those who have done the w126 fronts onto the w123, how does the stock 123 brake booster hold up--does it need to be upgraded to a bigger one or can it handle the bigger brakes?