On my meteor I took a dremel and wire wheel, buffed off a spot of corrosion on the outside of all the lamp sockets, then soldered a long continuous piece of pre-tinned uncoated wire to all the sockets and ran that wire back to the ground screw of the lamp bracket.

Worked 100%, was dirt cheap compared to replacing all the sockets, required a bit of time but very little effort, and looked not half bad once done.

ohhh ya sorry, I misread what you needed.

If you have an actual break in the spring/tab connection I don't know what to tell you, but 100% of mine were corrosion related.

All I did to remedy that part was dremel the inside of the sockets with something that has an abrasive tip to clean the spring. It wasn't consistent but eventually worked on all sockets.

I started off with sanding drums to clean the inside of the sockets, and the screw in the tip managed to clean most of the springs with pressure applied. The ones that still refused to work got another pass, possibly with some other polishing/abrasive bit that escapes my mind at this point... its in the polishing/cleaning mini kit.

If not that, I just kept grinding the screw of the sanding drum tip into the spring till it worked