Whether you're replacing a damaged plug our want to upgrade to the benefits of a magnetic plug our 1965-1979 Corvette Rear Differential Magnetic Filler Plug is a perfect choice. This filler plug is a direct replacement for your original. The plugs magnetic end collects potentially damaging metal contaminates from the lubricant.
C2-C3 Corvette Magnetic Filler Plug for the Rear Differential Features: