[dannymarilyn]

Dear Adrian, Just return the mounting plates as you get around to it. My oops! Please remove one of your lights and measure from one end to the other and across the light. This is certainly one place where Newell and other coaches differ.

This may be something that will function:

https://www.superbrightleds.com/catalog/...ifications

In the bottom of the listing, it displays the backup light mounting grommet and connecting pigtail.

This light could be tail light/brake light iin red and the amber version could be a good turn signal.

https://www.superbrightleds.com/catalog/...gory/4265/

These would mount in grommets as well.

This version below that one would retain your chrome bezel for tail, stop and turn functions.

https://www.superbrightleds.com/catalog/...gory/4265/

This light would give you backup and tail lights, but it is bigger.

https://www.superbrightleds.com/vehicle-...clear-lens.

I'd look for a nearby Fleet Pride or similar truck parts store. Also, research Trucklite and Grote.

Let me know if I can help.

deg