Originally Posted By Gambalunga
Originally Posted By sailingtom
Only LED bulbs so far but am trying to get some measurements for a stop light led unit

With the number of these lights that are used on a wide variety of vehicles it is truely astonishing that LED alternative for the 83mm lamps are not available.

These replacements for the smaller similar lights are available.

http://www.wipac-aftermarket.com/acatalog/Side_Rear_Fog.html

I have not measured it but I think the snorkle stop light may be 73mm



you also have this solution, such LED bulb is fairly cheap and easy to find

Attached Images
LED BUBBLE.jpg (142.43 KB, 100 downloads)
alternative choice