Yes, absolutely. Those are worn well beyond their serviceable life. You would never get proper tracking from the car unless replaced. Andy King provides new ones: http://www.mgsparesandrestorations.com/chassis-repair-end/p495422 Be sure to measure the distance from chassis to the end of the cross tube so you get the new ones in their proper location. And be sure the slots are at the same angle relative to the chassis rail. Measure twice and cut once. Then be sure the new pieces are properly welded into place.