Originally Posted by
davidad
The BB shell on these proprietary Gary Fishers is so small that you wouldn't be able to get that cartridge BB into the shell. It is what it is.
I would be hesitant to use JB weld, unless you didn't intend to ever remove it. It may be more prudent to find a replacement BB IMHO.
Or a nice normal frame that doesn't use an orphaned, dead-end un-standard BB shell. It's not like they're hard to come by, a nice steel Stumpjumper perhaps?