...LED replacement bulb for original small 67 bulbs in clearance lights. Forward-firing lights from Superbrightlights.com don't illuminate to the sides...I guess they will help aircraft spot me. Round 180 degree LEDS from same place are too tall to fit inside the lens. Part numbers and source would be very helpful.

Solution:

From Superbrightlights.com, these are a terrific price and they fit...but they are forward firing so they don't show well from the sides...

https://www.superbrightleds.co...5s-retrofit-car/168/

From LEDlight.com, these just fit and they have pretty good side illumination...

https://www.ledlight.com/g18-s...4v-non-polarity.aspx

Left to right...LEDlights.com bulb, then original type 67 bulb, then Superbrightlights.com bulb

All LED now...

(except license plate light)