2nd Gen Non-Engine/Transmission Right rear running light not working

[DPellegrin]

Hey guys tried changing bulb and everything the left running light works the brake light works but no running light only on the right anyone have any experience with this

 

[DieselDoghouse]

Is the brake light really working? - is it as bright as the other or might it be grounding THROUGH the running light circuit. IMHO I've noticed more problems with grounds on lights that the hot lead. If you have/have access to a multimeter I would check that the ground lead in the socket connector is 0Ω to a good ground (trailer connector ground, clean bolt). Hope that helps!