Taking the advice of a fellow-Mopartian, I've disguised this thread because I wasn't sure where to stick it - and I've been assured a Mod will park it correctly. Would this be considered "Thread Valet"?

My 84 D350 Crew Cab; 2 doors are hard to open like the dickens from the outside - but if I reach in and use the inside handle, they open with ease. Is this an adjustment that can be made if I tear it apart and work on it? Has metal fatigued or bent? Is something worn out?

Thanks!