Jon, your door handles do not match so clearly the passenger door handle has been replaced. It would have originally had a key hole for a lock cylinder. I had the same problem with my '42 Chevy and I found a proper handle (probably Ebay) with a key and replaced mine. That vintage of truck had the lock on the passenger side rather than driver side as a safety feature, requiring you to exit on the curb side.
Kent
Last edited by Lightholder's Dad; 07/28/2025 3:24 PM.