does my truck in my sig have a fuel tank selector filter? the one that spins off? ive seen other trucks with this but i cant seem to find it on mine. where would it be if i had it?
also- my gas from my front tank used to leak into my back tank at all times the truck was running, i replaced the bank tank pump and now the front tank does not leak gas into the back tank UNLESS im using the front tank. while using the front tank, gas leaks into the back tank. WTF?

 

Your truck does not have a tank selector valve so no filter other than the inline one.