ButlerBuilt Single Hose, Bumper Mount Duct - 13.75" x 5.625" Racing Suit Pants 3/4 in 36 Spline to

3/4 in 36 Spline to 3/4 in Smooth

slower reaction times

625 in ID Springs

C1500 1986-1979

060" diameter centering hole and fits axle flanges with up to 5

ButlerBuilt Single Hose, Bumper Mount Duct - 13.75" x 5.625" Racing Suit Pants 3/4 in 36 Spline toButler Built Air Ducts are used by many top NASCAR competitors. Computer aided design (CAD) provides optimum aerodynamic shape for smooth uninterrupted air flow. The NACA ducts can be installed in side windows or body panels to direct cool outside air to brakes, oil coolers or cockpit. Racers have chosen BUTLERBuilt Professional Seat Systems for their seating needs for decades. BUTLERBuilt has always been proactive in their approach to seating issues.