SOLVED. Pump installed and tank back up in place. Wow, much easier dropping the damn thing. Fuel gauge/quantity working perfectly. Filled up. Correct "full" reading then drove for about 50 miles. No issues what so ever. Remained steady with no fluctuations. Didn't mention this in my comments when I replaced the fuel pump almost 2 years ago - but I was having no luck with getting the lock ring off with a screwdriver/punch and hammer - so I purchased a tool. Made removal and install pretty easy.
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How much was that tool and where did you get it?