Gas tank help

[LongBox]

Does your truck have the charcoal cannister under the hood? That cannister will have vacuum lines and fuel vapor lines running into it at the top. If you have that, your truck has EEC. There should be an extra line from the tank to the cannister to vent gas fumes into the cannister.

I'm doing this all from memory, as my 69 doesn't have the EEC system, so if I've goofed this, some other member will correct any mistakes I've made.

[KT57]

Originally Posted by longbox

does your truck have the charcoal cannister under the hood? That cannister will have vacuum lines and fuel vapor lines running into it at the top. If you have that, your truck has eec. There should be an extra line from the tank to the cannister to vent gas fumes into the cannister.

I'm doing this all from memory, as my 69 doesn't have the eec system, so if i've goofed this, some other member will correct any mistakes i've made.

[KT57]

If you read my post it states tha LMC states that EEC was 71-72. But my truck has the vent lines nipples as you can see from my pictures. So unless I am off base, I have the incorrect tank. Can anyone confirm? My sending unit is leaking obviously and possibly the tank right behind the driver. Need to solve the problem and don't want to order wrong parts. Was it common to upgrade to the EEC tank? Did someone replace the tank with the wrong one? Come on guys. Where are the gurus with the quick easy answers.