My three amigos are on again and my front end shakes when I apply the brakes in a normal manner. Is it possible that the module is causing this shake? I have an amigo tester. basically it's the shuttle valve and an open circuit. I'm going to power bleed the system and see if that helps. I've checked everything mechanical and found nothing worn, damaged or misaligned in the front end. Did the drive shafts too (relax mike) and still the front end shakes. Any insight would be greatly appreciated. Yes.. and new module is in order but man.. the costs are adding up. Thanks!