Joe,
I have that picture, I would just need to dig it up for you. Maybe his weekend. I think you're right. The brake spring connects to the brake pedal, then to an "extension rod" that connects to the little tabs that come inward from the frame under the exhaust.
I'll do some digging because a picture says a thousand words.


1970 Chevrolet C10
Grandpa's -- My first truck -- In progress to shiny
Follow the build in the Project Journal
1950 Chevrolet 1-Ton Dually
"Ole Red Girl"
In the Stovebolt Gallery
More pictures here
1951 GMC 9430 1 ton dually--Shiny! | 1972 Chevrolet C20- Rusty- the puzzle box lid for the C10 | 1962 AMC Rambler American- my wife's
Parts trucks-
1951 GMC 9300 | 1951-GMC 9430 | 1951- Chevrolet 1300