I have seen the thin ground between the gas tank and the steel line rust through then the gauge stops working, check that first.

http://www.ebay.com/itm/Mopar-Gas-Fuel-T...a02&vxp=mtr

The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!