i replaced every par t except the box when putting my 78z together. with new tires and brakes. i couldn't believe how sloppy it drove. this is my 1st camaro, but i always thought they were supposed to handle well.after reading alot of advice on nasty i started adjusting on the steering box.i was told probably as were you to go in small adjustments and try it. i've moved mine about 3/4 of one round and now can't believe how well it drives.i left just a little free play, and it's like a different car. hope it adjusts out for you.