TH400 Turbo 400 Transmission Pan Gasket Blue Silicone with Steel Core If it has to seal

If it has to seal right the first time Speedmaster has what you need

wall thickness and are formed from 4130 chromoly steel

The Speedmaster C4 performance planetary gear sets eliminate your weakest link

along with energy-efficient and cost-effective friction management

Stay on track with Speedmaster 9 in

TH400 Turbo 400 Transmission Pan Gasket Blue Silicone with Steel Core If it has to sealSpeedmaster gaskets are designed for today's performance transmissions, nothing worse than a leaky transmission, and leaks can lead to the death of your performance transmission. Constructed from a cellulose nitrile material that features excellent tensile strength and superior blowout resistance, and their latex coating conforms to minor sealing surface irregularities for a better seal.