GM Genuine Parts Drive Shaft Seals are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These seals help prevent water and the elements from entering your vehicle's drive shaft to transmission connection, and are GM-recommended replacements for your GM vehicle's original components. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).