ok here's the deal! I've been restoring my 1967 c10 since 11/99
slowly putting money in it. I LOVE THIS TRUCK! it was my dad's
truck i remember riding in it with my soccer team for the homecoming parade every year, my dad dressing up as a pirate for the parade. but its getting on my last nerve. last week all my lights worked now as i'm going get my truck inspected so i can roll around in it, my right tail light doesn't work,my right brake light doesn't work, my right hazzard doesn't work - but the blinker does. i checked the wires everything looks good. what am i missing here? i have a 15a bulb fuse in it when it calls for a 20a could this be my problem? i don't think so but am not sure. help!!!!!!!

The size of fuse isn't the problem. One possible problem could be a bad ground.

alright, i have replaced the front harness the engine harness the under dash harness the tail light harness and the brake lights are still really dim. the brake lights do not work when the head lights or parking lights are on. when a blinker is on both flash on the back. i have a new headlight switch. now i'm thinking either the socket or the turn signal switch is bad.
i checked every ground wire everything is connected fine. any ideas i'm out.

I'd lean toward a faulty turn signal switch. along with possible ground issues