Replace your tired control arms with HEIDTS tubular upper and lower control arms for the 64-72 Chevelle,GTO and all other GM A-body cars. These arms are state of the art in both design and fabrication. Uppers are 1-1/4' dia tube and the lowers are a full 1-1/2' tube. They come powder coated, are supplied with ball joints and bushings installed. High performance urethane bushings are standard, to tighten up the suspension and allow no deflection under cornering loads for absolutely solid positive handling. Upper arms include offset cross shafts for ease of alignment which allow you to experiment with caster settings allowing better straight line tracking as well as in the corners. All arms are completely assembled.