1994 F150 Front gas tank

I have a leak in the front gas tank, so I only use the back tank. Lately gas started pumping out of the back tank into the front and leaking out. Can I stop this problem by removing the front tank? If so do I need to do anything special?

It's most likely the selector valve on the frame.
Fuel tanks are available on the net for about $100.00.From past experience the other tank will start to leak in time.
Report back.