So, Merkey starts his post by saying he has replaced front and rear side marker bulbs. Yet someone posts twice advising him to do exactly that, and then someone else posts to back up that advice. Since he has already done that, it would be much more helpful to tell him to try something else, like cleaning off the contact surfaces in the housing and checking the tension of the spring contact.

More importantly, the 124 TE lamp does NOT have a separate rear SIDE bulb. The ONE bulb on the bottom of the bulb assembly is positioned to illuminate both to the rear and side.