Well, thanks for the info and independent4x web site. So basically the ball joint spacers take care of the control arms, but do you really need the heavy duty torsion bars and wouldn't the factory ones do just fine? I also notice that calmini offers a new center cross member, brake lines, and two more add-a-springs all for $900. So how many people are running this indx4 lift kit and who is running the calmini kit? What's the pro and cons of both as for ride comfort and off road capability?