Although my dash lights light up when the switch is pulled, from the driver's position no light comes through. I'm sure the lights are working so why can't I see them even in the dark? I have never had the speedo out to disassemble it but maybe someone else has. Is there something that could be blocking the light? Yes, I removed the sockets and grounded them on the back of the speedo and they work fine. Even when they are pushed back in I can see a little light escaping around the edge of the socket. Going to have to pull the speedo case out and disassemble it?