a few days ago i stripped a parts car recently in an accident.
the front brakes were all virtually brand new with all new parts.

the car, a 91 240 with abs had calipers on it that were specifically originally designed for a non abs vehicle. there were 2 side by side threaded holes for the brake lines and 3 holes fitted for brake bleeders.

in fact its fair to say this caliper was exactly what you buy for a non abs car.

what the rebuilder did was plug one of the side by side brake line holes with a set screw and then plug both middle of the calipers brake bleed holes with set screws leaving only the single bleeder at the inner top of the caliper.

i asked the owner how the brakes worked before the car was hit and he said they worked fine, same as always.