I have a customer that has corroded terminals on his 100 amp Murray ring type meter socket and I am trying to find a new socket that I can take the guts out and use them in the old socket. I can't get a cat No. from the existing. It appears to be about 15-20 years old. The socket is really small. It measures 7-1/2 inches wide and 8-1/8 inch high. If I can't find a way to replace the socket guts he will have to upgrade the whole service.