Just to wrap up this thread...

It turned out that I couldn't get the lock in latch on the passenger side to operate. I made several attempts at lubing it, but the part that the link from the Door Lock Remote Control is supposed to move rearward to cause the unit to lock seems to be frozen.

Since this started as a volunteer effort on my part to get a key to fit a friend's truck so she could lock it...and then grew into replacing the key lock because there was no code on the old one...and then it was found that the key lock would not turn far enough to lock the latch because the latch is frozen...I have decided to throw in the towel. I have written up my findings of what I found in the way of incorrect or inoperable parts so they can be presented to whomever the owner hires to do the job and I am stepping aside from the project.

The Chevrolet Filmstrip suggested by Kevin (above), indicates that the window glass and its track need to be removed in order to remove the door latch. VCCA Tech Advisor also mentioned that the track can be easily kinked. Since I have never done this before, rather than risk damaging any parts (and a friendship), I have decided not to proceed.

Thanks to all who commented!

Nick

Nick
1940 KC Model 1/2 Ton Pickup Project
(with '37-'39 Bed and what we think is a '42-'46 Frame)
Taos, New Mexico