I just discovered a pinhole leak in my '66 gas tank. Any way to repair it. Thanks

 

Hi,

The only real safe way to fix that issue it to replace the tank with a new one. We have them on our site for your application with free shipping.

Here's a link over to them.

Mustang Gas Tank

 

Definitely replace. They are not that expensive, you can find them for around $120-150. There are manufacturers out there that sell sealers, but I would not recommend them, in the long run I don't think it would be worth the time and hassle.