68charger440 said

Back in the mid 1970's on my 68 charger I used a piece of rubber fuel line cut down the middle and then put a flat washer on top of that and used a self tapping screw to attach them to the tank. I was a poor kid so I couldn't afford a new tank. I forgot about it until I did a full restore a few years ago and saw the old repair. It mad me laugh remembering the things you do when you are poor, but It was still holding as good as ever over 40 years later. With that said replacing the tank is the right way to do it and I did just that during my restoration.

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1. In 1982, driving back to the lower 48 on the Alcan Hwy, in a construction area a sharp rock punctured the botton of the tank on my 66 Dart; an irregular hole about 3/16”. Jammed bar soap in it to plug until we could get to a town. I did essentially what 68Charger440 did. No new tanks in Whitehorse. Drained tank (that was easy!). Cleaned area around hole about 3” diameter. From the local hardware store, a short fat 5/16 sheet metal screw, a fender washer, and tight-fitting neopreme O-ring against the tank surface, smeared with pipe thread sealer stick. Tightened screw and wiped clean with gas on rag. Let dry. A thin coat of JB weld, let it set up for an hour, another coat feathered out, let harden overnight. I had a spray can of undercoat with me for some reason, and sprayed a coat on for appearance as much as anything. Planned to replace tank when i got home. Patch held, so decided to just replace tank whenever it started leaking. I still have the car, drive it regularly, though not daily. Has never leaked. I will still replace tank whenever/if ever it leaks...