Re: Second gas tank to crack and leak
I've used strips of rubber, cut from a mat that was once used in the back of a truck to supposedly help reduce the odds of the load travelling around, and either a bit of double sided tape (the stuff you get with a window film/draft seal kit, it's really thin) or a little bit of 'Gorilla' tape rolled over on itself 'sticky side out' to hold the rubber in place on the bottom of the tank. I find that a thin strip of rubber under the front and back fastener/bracket between it and the top tube often helps as well. In the case of a curved top bar (cruiser) I cut one end off of a rubber tie-down (pulled the S-hooks out, of course).. the thicker end the S-hook passed through shimmed the gap from the top tube's curve nicely.
Any day that starts with a good ride is already a better day, and a bad day riding still beats a good day working.
My Builds: My Beast
, Harley59's bike
, my Cruiser