Fuel tank selector switch does not work
 

The tank switch not does work. I am getting power to the switch. The switch is stuck to draw from the rear tank. When I switch from Rear to Front the voltages do change at the switch. I can provide specific volts to the color wire if it's needed to solve this issue. It's not a major issues at the moment, but I am in the proccess of setting this truck up to burn oil.

Any help will be greatly appreciated.