Power Brake Booster To Master Cylinder Rubber Shell Seal Fits GM 1964-1978 Vehicle Details$37Wellborn, FL Manufacturer: CadillacModel: Series 60 This is a Classified ad on eBay for a fixed price of $37, this is NOT AN AUCTION. Click here to see all details. More DetailsSeal installs between the master cylinder and brake booster to prevent brake fluid from entering into the brake booster. This is a power brake booster to master cylinder rubber shell seal. You get 1 Power Brake Booster Seal. More Vehicles Like This1939 Cadillac Series 60$951953 Cadillac Series 60$130 Cadillac Series 60$37 Cadillac Series 60$11