Update: The Spectrum CR20B fuel tank does not and will not fit in the car. I spent this weekend and part of today trying to make it fit. So now I'm out $300.00 dollars and stuck with a new gas tank for a 67-68 Newport and the 65 Monaco is sitting in the garage extremely sad. I on the other hand am Extremely upset about this! DO NOT believe everything people would lead you to believe. The extra 2 inches in length front to back does matter. So now I have to weigh my options and see what the next step is.
Anybody need a 67-68 Newport tank lol. Got a brand new ones till in the box with a new tank pad.