[kwmech]

Bottom pic I have to open up the hole in the center and remove to the line on the round dimple. (which will essentially create a hole there also) Then a small spot in the very lower area (which you can barely see unless you where to look for the tach mount)

Upper pic--the 2 slots (so to speak) all the way down and the bulb in there gets removed (it's a battery lamp)

That's why I was think of a different shell if this goes south I can put it back stock