On the billet chassis car
427 Billet Chassis Book
we made some really cool sleeve nuts for the control arms (page 135).
We decided it was time to upgrade all Kirkhams to the billet chassis sleeve nuts. We got the idea from a Riley and Scott Lemans chassis. The nuts are brilliant because you don't have to unbolt the control arm to adjust camber, caster, or king pin angle (if you are so inclined). The sleeve nut is right hand thread on the outside and left hand thread on the inside. Just loosen the jam nuts, twist the sleeve nut, and tighten the jam nuts. They save a TON of time aligning the car--and are more precise.
