Thanks for the help everyone. I replaced the rubber o-ring but turns out that wasn't it as it's still leaking. By the looks of it, it's the plastic piece that threads into the tank itself as I had seen some seepage around it but I had hoped it was just water dripping down from the o-ring. Oh well, still looks to be an easy fix. I just need to find the time to do it.
Clutch, me too. The first car I learned to work on was a 1968 Galaxie 500 sedan with a 390 FE. That was about thirteen years ago and my dad and I fixed that car up real nice. White vinyl interior, mag wheels, dual exhaust. It wasn't the fastest thing but it was the nicest lookin' four door around.