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Old 03-15-2026, 04:30 AM   #2
Rust_never_sleeps
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Join Date: Jun 2022
Location: San Ramon,CA
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Re: Wire/plug coming off my drum brake proportioning block?

It's the switch that trips the brake light on the gauge cluster when pressure in the front or back circuit drops and the differential pressure valve moves off center

All combination valves have them top center, AFAIK
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