Please critique my home front-end alignment method

Thank you. What year is that from? I looked on Rock Auto and I don't see that nub on any of the 69 Dart lower ball joint pics... I got mine from ESPO.

The picture is a 73+ disk lower ball joint. Wasn't sure what year car we were talking about, kinda assumed from your screen name it was 73+.

You're right though, the earlier cars don't have that steering stop on the lower ball joint.