This replaces and seal the factory oval hole in 1973-1979 FJ40 body tubs. That oval hole is the placement for the factory carb to tank fuel line. Our bulkhead fitting seals that area with the drilling of 2 holes. This allows 2 AN-6 bulkhead fittings to be placed into the bracket. Allowing new EFI fuel lines to me made and be disconnected inside the cab and under!Made from 6061 laser cut aluminum that is anodized black!