fuel pump relay problem....!!!!!

I have an 82 collector edition corvette. Took fuel pump relay off back of computer mounting plate. It is a black square shaped relay. I ordered a replacement from ecklers for my vette and recieved it today.  it isn't the same relay and doesn't have the same type of connector. I was told on here that the relay was on the back of the computer mounting plate. Could the relay be located anywhere else?

The black relay has date code 1816 on it, has a number 16024701 on it and C8 also 884701 on it with a C8 next to it.  Hope this helps...

Dan