91dodge 150 truck burned a fuse able link under hood and now has no fire or fuel
Most common is a shorted fuel pump, but that usually blows the fuel pump fuse, not a fuse link, they are for main power supplies like for alternator or headlights and to the main power distribution box, you are going to need a wiring diagram for this rig so I suggest you get one that has a good set of diagrams in it, if you can't find one then your local library should have one in the reference section that you can get copies from. HTH
Search Dodge Ram 1500 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Dodge Ram 1500 Experts