Fuel pump relay location 1986 - 1989

I have a 1987 Chevy 4x4 pickup with the 5.7 litter engine and I can not find the fuel pump relay.  I did a Google hunt and found a post for a 1987 Chevy Silverado but this one is not located there.  At a guess either this is an early 1987 or late 1987 and they changed things.
 
Thanks for any help!
Mike the ChevyTruckDude