Prop valve.

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Jul 17, 2013 | 07:46 PM

elkarcher1716

Thread Starter

Laughing Gas

Joined: Jul 2012

Posts: 998

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From: North Pole

Prop valve.

Where should I mount the proprotioning valve on my 75 HB? I got the brake lines ran up to the front and had to stop there cause im not sure where i should put the prop valve. any ideas? I got the bracket and stuff from the donor 74 2wd just not sure where to put this thing.

Tim

Jul 17, 2013 | 08:51 PM

hickory1991

Fleet Mechanic

Joined: Feb 2011

Posts: 1,410

Likes: 42

From: Michigan

Hope this pic helps. Right under the z-bar for a manual trans. Should be holes to mount bracket to.

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Jul 18, 2013 | 08:58 AM

elkarcher1716

Thread Starter

Laughing Gas

Joined: Jul 2012

Posts: 998

Likes: 3

From: North Pole

thanks for the pic. I was thinking about there also. Just got to fab something to bring it out a little away from the frame. Thanks again.

Tim

Jul 18, 2013 | 09:02 AM

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

Posts: 88,826

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From: Simi Valley, CA

Quote:

Originally Posted by elkarcher1716

Where should I mount the proportioning valve on my 75 HB?

Your truck already has a proportioning (Brake Pressure Differential) valve (see 2B257 in pic). All 1967 and later FoMoCo vehicles with dual master cylinders came with one.

If you swapped in disc brakes, the valve is different than used with drum brakes.

C8TZ-2B257-C .. Brake Pressure Differential Valve / 1968/75 F250 4WD

D5TZ-2B257-B .. Brake Pressure Differential Valve-Use with disc brakes / Marked: D5TA-2B524-FA or FB

1975/79 F100/150 2WD & F250 2WD with single piston calipers / 1975/79 E100/150 / 1976/79 F100/150 4WD & Bronco / 1976/79 F250 4WD / 1979 F350 4WD

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Jul 18, 2013 | 10:40 AM

elkarcher1716

Thread Starter

Laughing Gas

Joined: Jul 2012

Posts: 998

Likes: 3

From: North Pole

Thanks Number dummy for the part numbers. I did swap in disks up front. I was going to use the one from the 2wd donor truck i bought. It had front disk brakes.

Dec 7, 2013 | 02:53 PM

elkarcher1716

Thread Starter

Laughing Gas

Joined: Jul 2012

Posts: 998

Likes: 3

From: North Pole

Quote:

Originally Posted by hickory1991

Hope this pic helps. Right under the z-bar for a manual trans. Should be holes to mount bracket to.

hate to ask but can you get a pic of the bracket cause I am having an issue with mine. I might have the wrong one or something.

Thanks Tim

Dec 7, 2013 | 04:12 PM

hickory1991

Fleet Mechanic

Joined: Feb 2011

Posts: 1,410

Likes: 42

From: Michigan

Give me a little while and i will go out and see if i can get a pic of it.

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Dec 7, 2013 | 05:18 PM

hickory1991

Fleet Mechanic

Joined: Feb 2011

Posts: 1,410

Likes: 42

From: Michigan

Hope these help. Truck is a little more assembled than previous picture. Bracket mounts on inside of frame and spaces prop valve just past edge of frame. It's bolted to thru frame from outside. See pic with two angled hex head bolts. Prop valve then bolts to bracket. Kind of a c-hannel type bracket with nuts welded on inside of bracket. Maybe your frame is pre-drilled for bracket maybe not. Tried to show shock to give you an idea of location.

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