When looking at the top of the gas tank from the driver side wheelwell I can see some wetness where a fuel hose enters the top of the tank.  The hose runs form the passenger side frame rail to the middle of the tank then has a 90 degree turn and goes into the tank.  I don't know if the problem is just a hose or if the metal fitting to the tank is rusted.  If it is rusted is it a part of the fuel pump assembly and would I have to replace the fuel pump to fix it?  How much does a fuel pump cost?  I'm going to take the tank down tonight to get a better look.

Fuel Pump sending unit is very expensive like $300 if memory serves.  But I think the line you are describing is a return line that goes in the top of the tank.  I've had one rust in the same place.  If the rest of the tank looks pretty good there are some great gas tank repair epoxys on the market and since the hole is on the highest point on the tank if you repair it it will probobly last forever.  Just make sure to follow the directions and clean the tank really well.

Trackermad, thanks for the info.

Most likely the housing has rotted away. The top of that cap has 2 lines that are part of the cap that come through it, bend in a 90 and then connect to the fuel lines. If you are a little too rough dropping the tank, those lines might just crumble on you. You might be able to get a pump housing with a good cap area from a junk yard for not too much, mine cost $40. You could also just braze new lines/fittings onto the old cap. Be sure to remove it from the tank, remove the pump from it and clean out all the old gas from it first! Then once it's fixed, seal the seams with fuel-proof sealer and paint it with rust-preventative paint. This should ensure that you never have to see that part again! LOL!!!