just installed new gas tank in my 67 bird, I put the filler neck in trough the rear panel but it just doesnt seem correct. Ive seen ones with round flanges mine is square pretty sure its original.tryed fitting in through trunk but doesnt quite fit. if anybody could help id appreciate it thanks again Pauly
The square flange is correct. The filler tube goes from the outside in. There should be a rubber boot over the filler tube and pad with the gas door bumper between the flange and body. At the tank end you should have an offset rubber hose 3"-4" long (fuel rated) between the tank and filler tube. The outside square flange is attached to the body with 4 screws and there should be another square metal support flange at the bottom of the filler tube rubber to fasten it to the trunk floor. Just did mine last weekend. Filler tube went fine, wish the metal cover inside the trunk would have fit as good.
Resurrecting an old post just to be sure. Putting my tank/tube in as well.
Assuming the bottom of the rubber boot acts as a gasket, does it bolt from the trunk side with the square flange. It appears from the last post that there may be two flanges for the bottom?
The way I have it set now, from the trunk floor up, I have trunk floor, rubber boot bottom (lets call it the gasket), flange, then the boot goes up, the top rubber boot "gasket" pokes thru the filler door hole, and is compressed by the tube, which is inserted from the back.
The reason I am questioning it is when I test fit the metal protector cover, it sat on the flange with the flange poking out the bottom, just did not look right.