Welp... replaced the aux side tank today, cleaned up all the grounds and chased the wires best as I could... and the gauge still reads 3 O clock.
thinking it needs a new sender.
Should have just bought the darn thing while I had the tank out. Now its back in and I'm working on the driver's side tank. When its all said and done at least I'll have fresh hoses and the knowledge of how to drop the tanks...