They sell a replacement tailgate lock for an early series S-10 Blazer that will work on our cars, if you don't mind it being black. I remember Advance Auto sold them at one time. ...and perhaps even Auto Zone.
Thanks for weighing in, that is what my research showed too (and had it in my Amazon cart). I am picking up the one from O. D. Showtime since I prefer the chrome on the yellow paint.