8steel tubing, 1.000 in. Od, 0.095 in. Wall thk; 66.750 in. Lg; first end flattened to lg of 3.000 in., second end flattened to lg of 1.500 in.; both ends rounded on 0.750 in. Radius; both ends 0.406 in. Diameter mtg holes, 0.750 in. From hole centers to end