Replaced the fuel pump.
During the last week the TJ almost left me stranded twice. Both times it eventually started, but I was close to calling for
tow. Gas gauge showed half a tank, but thought it would be doable. Got it unbolted and about got a hernia. It was almost completely full. Finally got it on the ground and hooked up a 'drill pump' to empty into five gallon gas cans. Drill pump melted down after the second can so we just decided to fight with it. Pulled the fuel pump, and it came out in 3 pieces. The main body, the bottom plate, and the 'sanitary napkin'. Being an Arizona Jeep all of the fitting 'locks' were brittle and broke, so we used small zip ties (they actually work really well). Got a little nervous when I tried to put the pump in the tank and it bottomed out before it was fully seated. After my heart rate went back to normal we realized it will collapse so the it fit. Must be made to fit multiple tank sizes. Got it back together and it started right up. 4 hours including a lunch break. SUCCESS!!
Not sure how old the pump was, but it was a Delphi, just like the new one we installed.