I have a question about the brake pedal setup on my 1937 1.5 ton panel. I believe the brake setup stayed the same until at least 1946. On my truck, when I take my foot off the brake, the brake pedal return spring pulls the pedal up until it is stopped by the toe-board. The spring also pulls the master cylinder push rod out of the indent in the master cylinder. It seems like there should be something similar to the rubber stop that is mounted on the toe board for the clutch pedal. The brake pedal also returns much more (3 to 4 inches) than the clutch pedal. I attached pictures of the setup when I got the vehicle and a diagram from the GMC manual. Am I missing a part that would keep the pedal from being returned that far?
If the rod is pulling out of the master cylinder, you can adjust the pushrod a bit longer. My other thought is, are you missing a rod that bears against the crossmember (red arrow in the pic) to stop the master cylinder pushrod from retracting too far? It doesn't seem like there's anything missing on your first picture however. Just throwing things out there for you to consider.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
Thanks for taking a look, Kevin. I'll try to adjust the pushrod longer, that should help one problem I think the red arrow points to a spring but I'm not 100% sure. My spring is mounted near the pivot of the brake pedal and can be seen in one of my photos. I think I may end up putting a rubber stopper on the back of the toe board if no one knows the proper way the whole thing should be set up.
