Not sure if this will help much, but when getting ready to re-do the GM Restoration Tech Tip, I noticed this link to Canadian trucks. If there isn't something specific on that page, it may still lead you to more info, directly from GM.

BTW, hope to get that updated this week. Have a contact at GM for details.

Peg

~ Peggy M
1949 Chevrolet 3804
"Charlie" - The Stovebolt Flagship
In the Gallery
"We make a living by what we get; we make a life by what we give." -- Winston Churchill