BTW, here's one of mine; didn't drive it, but the truck ran fine around the yard like this! The one that was plugged to the point of cutting out going down the road was actually worse than this one! (Cleaned on side of road, so no pics
) Both of the trucks in question had some lame old mechanical pumps that had been on there for decades, and the one from the sender in the picture actually leaked, I think. So I wouldn't guess it's a problem with the pump being lame, especially considering you've tried more than one. That really only leaves the lines/pickup, unless the fuel pump cam is flat or something like that, which I personally think would be very unlikely.