[WILLD420]

When you dropped the beam mounting point to make the tires straight, you needed to drop the pitman arm that much too. The pitman arm/drag link has to pivot on the same plane as the i-beam or it will bumpsteer. Has nothing to do with the radius arms. The radius arms will cause your caster angle to be all messed up until you drop them or bend them to get the factory angle back. Bad caster will cause the steering wheel to refuse to self center and make it wander the road, but it won't give you bump steer.