I was wondering if the was some intentional oval made into the holes in the frame. Knowing that helps. There is a bit of wear in the holes of the steering gear sector housing so using them for a precise measurement isn't viable. I figured that there was enough room there to allow the steering column to move in order to adjust to the steering column support bracket. Probably one of the most important things here is to make sure it is bolted up tight to the frame once set in place to prevent it from moving around.