They tend to get out of adjustment after 25 years or so.
Once you get the door panels off it will be fairly obvious how they work
and what needs adjusted as far as the linkages are concerned.
IPD sells a neat tool for undoing the snap rings that hold the inside door and
window handles on. Once you get them off the remainder of getting the panel off
is fairly straightforward. I'd suggest that when you get in there you have a
vacuum cleaner (or maybe a bunch of terry cloth rags, depending on how wet it is)
and a good flashlight.
While you are in there make sure that all dirt and trash is out of the bottom of
the door and that the drains are open. I once accumulated over a gallon of water in the passenger door of Li'l Red. Since it was a 2-door there was more
space for it. Water accumulation in there is one of the main causes of lower door
rust. The rubber lip seals work but are not perfect.
Once you get in there you can also get the lock out so you can take it to a
locksmith. Be sure you pick an OLD locksmith!
--
George Downs, Bartlesville, Heart of the USA!