I'm working on this now - luckily it's only 3 busted tabs and cracked lugs, and the rest is just better-safe-than-sorry reinforcing, but the tabs are giving me fits. JB Weld isn't working for me at all. I got a dremel in there and got the back of the tab level, and roughed up both mating surfaces, and I'm getting about a rubber-cement-level bond. Just pops off threading the screw in with my fingers. Any advice?