I got a 1988 Dodge D250 5.9L and recently I've found out that the fuel lines on the fuel pickup have basically rusted away to the point I can't get fuel to the engine. I have temp fixed the fuel pickup but, it needs replaced. I have been having issues with finding the fuel pickup for my truck. I know the part number for the cap that holds the pickup down on LMC Truck is #55-6646 but, since I didn't remove the pickup cause I didn't want to break what was left I don't know exactly what it looks like. I think its a 22 gallon tank but, I'm not sure. If you need anymore information about the truck just ask. The Image below is the fuel pickup when it was off the truck.

Thanks, Bryan

 

it should say on the tank whether you got a 20 or 30 gallon