I need to replace the electrical connector for my fuel pump... the male side that comes from the van to the fuel pump. Does anyone know if I can get just that connector or do I have to buy a entire new wiring harness?

 

highly unlikely GM will sell you the connector separately.
You can check rockauto.com for aftermarket stuff.
if all else fails there's the junkyard

 

I would check Rock Auto.

But by the time you do all that work to get the thing down, why not change the pump too?