Can you post a photo showing the base of your bulb that works alongside the LEDs that don't work? It would be nice to see what the difference is. In your other discussion you said the LEDs from ledlight.com did not work. I'm wondering if you got the same or different LEDs than I got. These are the ones I ordered and they fit my '35 just fine. But maybe '37 uses a different base?
https://www.ledlight.com/p15d-30-led...ed-ncnrnw.aspx