Cusser

OK, it is a 5/8 inch size spark plug socket, I first tested with a 5/8 inch deep socket. So I had to force the 5/8 inch spark plug socket (on a 6 inch extension) onto the end of the spark plug to remove it, I guess the hole in the rubber insert was too small. When re-installing, however, the socket remained stuck to the plug, so I had to unscrew the spark plug again to get the socket out. I used the traditional piece of rubber hose to get the plug threads started, then I could do final tightening with the plain old 5/8 inch deep socket. I guess I'll try to drill the hole in the spark plug socket a little larger, too bad I don't have a magnetic socket like I do for my 13/16 inch plugs. AZ Rocket - I'm in Phoenix.