Can't figure out where the problem is. Lights all work, but when i press the brake the driver side brake light does not work. Emergency lights work running lights work. Figured it was a fuse but could find bad fuses. I'll check again today during the daytime.

Anyone else got any suggestions where to look?

I assume you checked the bulb? The turn signals and brakes are different bulbs so you can assume that because the turn signals work the bulb is fine.

4 bulbs in the taillight assembly as far as i can tell. They all work. The emergency lights use the same as the brake light if i remember correctly.

Hate to take the truck in for a tail light issue.

I'll definately check again though.

4 ways use the same as the turn signals which is different then the brake lights. I would be money on it being a bulb. Swap it for the turn signal bulb and you will know for sure.