In addition to obvious reasons like your original chassis has rust, cracks, is bent or missing;
• The stock chassis geometry is flawed for a performance application, camber gain is opposite of what is should be and bump-steer is excessive.
• The stock chassis has an enormous amount of flex.
• Our rolling chassis is stronger and lighter.
• When you consider adding all the best bolt on parts and blasting, repairing and painting your stock chassis, you are close to the cost of our whole rolling chassis package.