Toyota previa pulsating brakes

My parents 1992 toyota previa shakes violently when the brake is applied, and the pedal pulses up and down alot when the brakes are applied. the ABS system hasn’t worked in years because the wires to the sensors are cut.

things that have been replaced to try to fix this,



new rotors,

new front right side caliper,

bleed brakes



the car doesn’t shake during acceleration or coastingm everything else on the car works just fine.



the

thi

This could be a very worn out front suspension or steering system, and requires some serious exploration, because it is a safety risk.