Well, I just finished upgrading my whole suspension. I used Hotchkis rear leaf springs, torsion bars, pivot pins, larger front sway bar, upper control arms and shocks. I welded the stiffing plates to the lower control arms. I also added a Dr. Diff master cylinder to go along with the Wilwood 4 wheel disc brakes. I took the car out for a little test spin but I still need to align the front end. Defiantly handles and rides better. It's still stiff but much more controlled and not skittish when going over bumps. When I go around a corner the steering wheel wants to center itself way better than before. As is the car tracks and bakes straight. The brake pedal feels much better with the new master. So far so good.