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Proportioning valve tool for rear brake bleeding?

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Proportioning valve tool for rear brake bleeding?

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Old

May 13, 2026 | 05:37 PM

#1

73explorer

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Tuned

Joined: Sep 2019

Posts: 378

Likes: 191

From: Port Charlotte, Florida

Proportioning valve tool for rear brake bleeding?

I need to bleed the rear brakes on my '73 F100 2WD. This takes some kind of little tool to hold open the valve on the proportioning valve. Ideas? I'm sure the Ford tool is "unobtainium" these days.

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Old

May 13, 2026 | 06:37 PM

#2

Mark8man

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Joined: Feb 2011

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I've bled brakes on old Ford trucks and vehicles in general hundreds of time and never used the tool or worried about it. Just bleed away and I suspect you'll be fine.

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Old

May 13, 2026 | 11:36 PM

#3

77&79F250

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Joined: Feb 2007

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From: S/W Missouri, Polk county

Club FTE Gold Member

I to have bleed a lort of ol Ford truck brakes, and never touch that pin. To push in it or hold it out is based of trucks GVWR,

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Old

Yesterday | 06:38 AM

#4

egchewy

More Turbo

Joined: Mar 2022

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I pulled it forward using a pair of pliers and held it there w/ some vicegrips.

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Old

Yesterday | 08:35 AM

#5

tbear853

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Joined: Feb 2004

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From: The Shenandoah Valley

Quote:

Originally Posted by egchewy

I pulled it forward using a pair of pliers and held it there w/ some vicegrips.

Me too, used little needle nosed vice grips .... but the springy clip is something I've long intended to get. It looks simple enough to make.

Then there are simple screw in center holders like this that temporarily replace the switch to hold the internal valve centered.

"Steel, 3/8-24 thread. This tool is used to keep the piston centered while bleeding the brakes...... etc"

Last edited by tbear853; Yesterday at 09:46 AM.

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Old

Yesterday | 04:46 PM

#6

77&79F250

Moderator & parts slinger

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From: S/W Missouri, Polk county

Club FTE Gold Member

That little springy thing's pretty easy to make.

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