Forgive me if this thread is too old to bump up, but I have located wheel bearings for the rear of your cadillac.
As long as you don't have the hearse/limo or HD suspension or brakes than the part at 512006 from MIBearings LLC (the site you linked to) will fix your ABS problem.
As long as you don't have the hearse/limo or HD suspension or brakes than the part at 512006 from MIBearings LLC (the site you linked to) will fix your ABS problem.