Hi Lee,
I use the no. 87 Ball Link 1/4 in. H.D. The ball sticks out equally on both sides and the connection to the pushrod is a hole to accept a 4-40 threaded rod. It comes stock with a little standoff which is optional depending on your setup. Actually the package comes with 2 ball links and 2 standoffs, 2 screws and 2 nuts manufactured by Rocket City.