Inspired by this thread and my ratty old gauges, I laid into my own gauge project. Sorry - some of the photos are quite large.
Starting point:
Stripped and with LEDs epoxied in place. You can see that I just used one set of rubber light boots and ran the wires through a hole in the bottom. I soldered them up to the existing wiring and covered them in heat wrap as well.
Christmas presents from my wife!
Finished product. Joker Machine didn't send enough of those stupid gold allen screws so I'm waiting on 2 more for the tach.
And last but not least - night light.