Installing a new differential gasket will save your car's differential gear from leaks. While it is also true that you can use RTV (room temperature vulcanizing sealants) to fix the leaks, it's still better to replace the old and worn-out gasket as a long-term solution.
What are the materials used for differential gaskets?
Gaskets are usually made from sheet materials. This is the case with differential gaskets that are built out of gasket paper, rubber, silicone, metal, cork, felt, neoprene, nitrile rubber, fiberglass, or plastic polymer. The best differential gaskets not only provide good compressibility and adaptability, but they are also resistant to both temperature and chemicals, making these gaskets last longer. Therefore, you have to get one that has these good characteristics or features.
Differential gaskets are also made from a material that is to some degree soft and one that can bend such that it can be flexible and can snugly fit the space it is designed for, including any slight irregularities. There are many differential gaskets to choose from in the market. Prices of these gaskets range from $50 to $100. We recommend that you compare prices before making a purchase.
What are other things to consider when buying a car differential gasket?
Differential gaskets also work best with gasket sealants. These sealants are directly applied on the gasket surface. This will make the whole process less difficult because gluing the differential gasket to the part keeps the gasket from moving. Custom-made gaskets are also available. They use silicone for these.