MW housings have 3-1/4" diameter 4130 tube with internal bracing and choice of MW housing ends. Fits ’82-’92 Camaro/Firebird. Includes torque arm mount. Due to the variety of options available, please collect your dimensions, know your suspension and how it will be mounted (4-link, leaf spring, ladder bar, etc.), then call 1-866-508-6394 or contact us to place your order.