I took my drivers seat out and the locking mechanism for forward and back adjustment is only on the outside. The inside just springs forward when taken off the studs. Is this the way they are or was there supposed to be a locking mechanism on the inside too. Somewhere in my mind there is an image of a wire running across from the adjuster arm to the inside but there is no wire or place to hook to on the inside (there is a hole on the arm) is this correct?