Does anyone know what would happen if you go from a 19 1/4" rack to a 18 1/4" rack. I know the bumpsteer would change but what else will happen. I have an old grt and it has a 19 1/4" on it. The 18 1/4 racks are easier to come by. I cant make my mind up on which one to get. I have always heard that you are supposed to line the center of the rack holes up with the center of the lower control arm holes. I cant do that with the one I have now. Thanks