RTS Ford 9 in Ultrta 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 .125 Inch thick, and the faceplate is 375 inch. thick. Configured for a 9 in. Ford, the housings come in full-bodied car style, with cut-to-length 3 or 3.5 inch O.D. x .250 in. wall axle tubes, Suit All Ford housing ends aligned with the center section. The Complete Ultra Housing has an overall width of 60 in with 3.0 or 3.5 Inch Tubes 

Features
• Triangulated Ridge Design
• Constructed From .125″ material
• Heavy Duty .375″ Face Plate
• Tube locations Slotted & Welded 
• Clearance Provided For Cases With HD Main Caps
• Housing Will Accept 9″, 9 1/2″ Gear Sets

Comes with Center Section Studs, Billet Fill Plug, Drain, & Vent