My 1950 Chevy PU driver's door won't lock. This is the door that is locked without a key (other door with key works fine). Upon closing the door tight the interior handle is supposed to be pushed into a locking position which engages the lock in the door. However, the outside handle disengages the interior handle and it opens, so it isn't locking.
I took the door panel off and looked for anything obvious and looked in the shop manual for help with this and it is of no use. Where do I go from here?
