Tracking possibly? With your steering wheel straight ahead see if the front left wheel is pointing straight forward, and the front right wheel is toeing out slightly. That'd make your right wheel hit the chassis/arm and judder. Had this problem myself but turning left and thats what is was.
If it turns out this is the problem jack up front right wheel and turn tracking rod to make larger and bring the toe in. Because that wheel is jacked up it'll be the only one which moves, instead of altering the tracking of both wheels.