RTS's Ford 9 in fabricated rear axle housings are CAD-designed and CNC-machined to be stronger and lighter than other styles. Their triangulated design provides the structural integrity required for racing. Made from mild steel, the outer shell is 1/8 in. thick, and the faceplate is 1/4 in. thick. Configured for a 9 in. Ford, the housings come in full-bodied car style, with cut-to-length 3 in. O.D. x .250 in. wall axle tubes, suit Ford forged housing ends aligned with the center section. The full style has an overall width of 60 in., and the faceplate accepts 3/8 in. studs. A drain plug, filler plug, included