Hey Dually guys.... Dumb dually question!!

[hotsam]

I'm trying to get all the lighting back in shape on my 85 GMC c35. Gonna do some led replacements and such... (I think) Someone has put red marker light lenses in the front of my dually bed fenders. I've had a couple of these trucks but can't remember and I think by looking at pictures of others the front ones should be yellow, just as any other forward facing/moving light. So am I correct?? Also I can't seem to find a listing for the lens (lmc or others) but these fender markers on our duallys look like the late 70s vertical marker lights will those lenses work for replacements ? Also what led replacements are you using for fender/tailgate markers, and cab lights etc .. pics?? Thanks in advance !!