Transmission crossmember fit for the 1963-1972 C10 C20 GM full size pick up.You can run 3" dual exhaust tucked up in the frame,allow a truck with air bags to lay frame without fear of damaging their exhaust system.Cross member weights 15 pounds ,this unit is lean and efficientSuper thick superior quality and durable.Can be able to tuck pipe nice and high under the truck.Install easily.Ours supports the two bolts up and down.Maybe need to drill holes on frame rail.