I have never used jb weld before. How long will this last? It won't just vibrate loose and separate from the case? I just pulled a taillight off a bike that instead of making a bracket it just got kinda rigged up with jb weld. I had to yank on it a little to get itbto come off but after I got it off I could easily take it off with my fingernails. Was pretty brittle. I would think that with all the vibrations and heat it would just crumble and fail.