Step by Step method I use to permanently seal a steel gas tank.
Brazing rod: http://amzn.to/26MQW3U
Repair it quickly without welders using epoxy: https://youtu.be/3Iv5sWZ0nYI
Rear 19gallon tank repaired on my 1978 Ford F-150 4x4
Last part of the video is Moab Utah Poison Spider/Golden Spike 4x4 Trail