RAM 3500 Van V8-5.2L CNG VIN T (1996)
Brake Rotor/Disc: Testing and Inspection
The most common cause of brake chatter, vibration or pedal pulsations on disc brakes is a variation in thickness of the disc.
Excessive lateral runout of braking disc may cause a "knocking back" of the pistons, possibly creating increased pedal travel and vibration when
brakes are applied.
