Any time I have felt a "pulsing" in a car, I felt it in the brake pedal. If that is what you mean by "pulsing", how do you know it was the right side? Just asking.
Under braking there is a surge going thorough the chassis on the right side as if the brake caliper is loading and unloading during the rotation of the wheel assembly. Not a pulsing of the pedal are shake in the steering wheel.