Vacuum gauge
Super Moderator
Joined: Apr 2004
Posts: 34,476
Likes: 2,800
This post explains--you have to slug your way through it--how the brake vacuum gauge is connected after the check valve, so you see the vacuum in the reservoir--the vacuum available for the brakes.
It also gives the part number for the gauge, which is seen here:
https://www.ford-trucks.com/forums/a...7&d=1428880684
But that's for later truck, I can't find anything for a '57.
It also gives the part number for the gauge, which is seen here:
https://www.ford-trucks.com/forums/a...7&d=1428880684
But that's for later truck, I can't find anything for a '57.
Cargo Master
Joined: Apr 2003
Posts: 2,058
Likes: 424
From: Too close to Houston
Except for letting you know the vacuum check valve is working to hold vacuum in your brake booster, and the diaphragm in your booster isn’t leaking.
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