Thanks for the reply, Kurt. I put a rebuld kit in the mc. My suspicion is exactly what you mentioned. You would think the new spring and seals would eliminate this possibility. The mc was working fine before I rebuilt it, along with the wheel cylinder.

Montana first time diy rebuilder.
1948 Five window, 3/4 ton, 216 motor, four speed, six volt, mostly original
In the Stovebolt Gallery
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