Differential Drain Plug Ford Model A 28-31 Model B 32-34 A-4030

Differential drain plug A-4030, for Ford Model A 1928 to 1931, Ford Model B 1932 to 1934, Ford Early V8 1932 to 1948, Ford Pick Up 1932 to 1947 and Mercury 1939 to 1948. 

Also fits some Model T's 1926 to 1927. 

This is the original style drain plug, 1/2" pipe thread.