Seals-It Firewall Grommet 4.00" O.D. Blank Disc Brake Rotor Dust Cap Lowers your 1967-1972 GM A-body

Lowers your 1967-1972 GM A-body 2-inch

Shift Improver Kit for C4 Automatic Transmissions

and are a popular choice for street stocks

4-3/4 Bolt Pattern

Lincoln and Mercury C4 and C6 automatic transmissions with a reverse valve body

Seals-It Firewall Grommet 4.00" O.D. Blank Disc Brake Rotor Dust Cap Lowers your 1967-1972 GM A-bodyProduct Description: Firewall Grommet 1 Hole 4 in OD Aluminum Rubber Black Sold Individually From asphalt and dirt track racers Seals It rod end seals get the job done. In business for over 25 years, Seals It manufactures seals, grommets, and other automotive products for many industries including NASCAR, motorsports, and 4x4 off road vehicles, as well as agricultural, aerospace, transportation, and other applications.