This kit includes gaskets C18282, C25578, C25580 (2) and C25581 and covers the brake pedal housing, steering housing and the three blank-off plates near the washer reservoir. It fits all 3.8 E-Type plus 4.2 Series I roadster and FHC up to about March of 1966, or VINs 1E.10430 and 1E.30210, respectively. The difference is in the brake pedal housing gasket -- this kit includes the gasket pictured in the 4.2 Series I parts book. Later kits use the larger gasket as pictured in the V-12 parts books. This kit does not fit Series I 2+2. Use 16-2551.