fuel pump assemble the two prongs that go in to gas tank rusted,can not find fue

Might be best to try and find a tank in a salvage yard outside the area where you live that not use so much salt on the roads. There is a good search site for the entire country at "CAR-PART.COM" . Might search of states like Texas, Arizona, New Mexico...etc.

Those prongs are a part of pump , just top half showing. If that bad, try sliding rubber fuel line that fits snug over top , clamp each end. Providing they are not ready to break completely off or have done so already. Add another piece of metal fuel line between the ends of those & to regular fuel line on frame.(clamp) Will work for a good while until replaced or just a cheap quick fix. Only other solution , buy new pump. Had many of these trucks.

WRECKING YARD OR DEALER