Permatex 81182 Gear Oil RTV Gasket Maker, 3 oz. Specially formulated to withstand the harsh gear oil environment found in differentials and transfer cases Specialty silicone does not break down against gear oil friction modifiers Seeks and seals leak paths that cut gaskets cannot Tested to Original Equipment Manufacturer (OEM) specifications to ensure complete sealing power Sensor safe, non-toxic, and non-flammable