I received some valuable of information about my truck recently. I contacted George at
http://www.vintagevehicleservices.com/ and he reported back to me that:
1) My truck is
1 of 2697 GMC shortbox trucks (both step side and wide side included) that were produced in Canada in 1959
2) The official name description of my truck is "GMC Custom Wideside Pickup"
In light of this new information I will change the Subject title of this thread.
I also learned that in Canada, in
1959 only did
GMC offer the bedside stainless (along with Chevy). Chevy Apache trucks in the US were only offered this trim exclusively from what I've learned. Chevy Apache trucks are referred to as "Fleetside" not the GMC cousins.