You said highway vibration when braking,usually a heat warp in a rotor.
Could be the one pulling left, if the pulling left has caused a heat build up.
I would inspect the left rotor and pads for oil/grease residue, nothing will grab a brake and harder, or faster than grease on a braking surface
Could be the one pulling left, if the pulling left has caused a heat build up.
I would inspect the left rotor and pads for oil/grease residue, nothing will grab a brake and harder, or faster than grease on a braking surface