Well, looks like I need to replace the dreaded fuel pump, but I'm not sure which one I need. I'm showing the following ones available for my truck from O'Reillys Auto Parts. Which one is the right one? The choices are 1) two electrical connectors, 2) one electrical connector, 3) with EVAP, or 4) without evap.

Here are the specs on my truck:
2003 Chevy Silverado
LS model
Extended Cab
4x4
Z71
4.8L V8

Here's O'Reillys choices: List: Fuel Pump - 2003 Chevrolet Silverado 1500 | O'Reilly Auto Parts

 

try going to rockauto.com and you can put in the year make model and type of truck you have it should give you the part from there and there pretty cheap too this is where i went when i bought my fuel pump but i bought the pump only and reused the housing the pump was 60$

 

Thanks for the recommendation. They do have pretty good prices. Thanks!