As previously mentioned, Hotchkis isn't a direct factory replacement. It's a huge bar!
Honestly, if you already have a sway bar, I'd go with bigger t-bars and good shocks first (Hotchkis, QA1, or Bilstiens). Update the sway bar after you have those componets.
The Hotchkis bar is a larger diameter because it is hollow. And being hollow means that it is lighter, and that takes weight off the front end. Which is already heavy on A bodies.
