Made out of 1-5/8x.134" wall & 1-1/4" mild steel tubing. Uses the same rear suspension as our Eliminator II chassis kits. All round tube construction make it the perfect choice for the "fast street car" classes. The 4-link brackets mount 5-1/2" off the ground on the upper and lower main hoop crossmembers. For cars where the main hoop is placed within 23" of the rear axle center line. Kit includes a pair of frame rails; two 4-link crossmembers; upper shock mount crossmember; upper shock mount tabs; rear crossmember; 1-1/4" frame gusset tubes; hardware; instructions and drawing. Shipped unassembled by UPS. Note: main hoop and cage rear struts are not included, they are part of the roll cage kit.