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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Adding power brake booster

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Old Jun 18, 2015 | 07:26 PM
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Adding power brake booster

Hi all!
I am looking to add vac assist brakes to my '66 f-250. Anyone done this? I have looked over the entire engine and can't seem to find anywhere to pull a vac from. Any help would be greatly appreciated. Thanks much,
Steve
p.s. mine is a custom cab camper special. What's the difference with the cab?
 
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Old Jun 18, 2015 | 11:18 PM
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Just do a search in the forum for "power brakes". You will find a lot of suggestions on your options.
 
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Old Jun 19, 2015 | 10:20 AM
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Welcome to FTE. If you have a 352 with the stock 2-barrel, there is a vacuum port on the intake manifold on the passenger side.
 
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Old Jun 22, 2015 | 11:09 AM
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Originally Posted by KO1960
Welcome to FTE. If you have a 352 with the stock 2-barrel, there is a vacuum port on the intake manifold on the passenger side.
Thanks! I saw the plug and just wasn't sure. There is also a plug on the intake manifold right behind the carb. Do you think that's a vac port as well?
 
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Old Jun 22, 2015 | 04:25 PM
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I don't know what type brake booster you have in mind to install but, I used a dual diaphragm booster from a '75 F350 in my '69 F100, along with installing the front suspension/discs from a '77 F100. --well, I got the booster and brackets off of a '75 F350. I reused the brackets but traded the booster (core) in on a newly rebuilt booster.



BrakeBest 54-73112 - Power Brake Booster | O'Reilly Auto Parts

You could install the entire front suspension/discs from a '68-'79 F250 to have front disc brakes as well.
 
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Old Jun 22, 2015 | 06:41 PM
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Thanks for the info. It looks good!
 
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Old Jun 24, 2015 | 03:47 PM
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Which MC did you use?
 
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Old Jun 24, 2015 | 07:48 PM
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Originally Posted by Shadowrider123
Which MC did you use?
If this question is in reference to me, the (new) MC I used is for a 1995 Ford Explorer. NAPA p/n M3246.

It has ISO metric bubble flare ports. The primary port requires an M10 x 1.0 fitting. The secondary port requires an M12 x 1.0 fitting.

The MC bore diameter is 1.062" (1-1/16").

There are two different versions of this MC. One is designed for cruise control and one without. My MC is designed w/o CC.

However, my setup is in a '69 F100 Ranger. My brake light switch is inside the cab. For a '66 or earlier model truck, the Explorer MC, for CC, would probably be the better choice.

If you look back at my previous photo, you'll notice there's a 'rhino horn' (casting boss) sticking up on the front of the MC body. On a '95 Explorer MC w/CC, this boss will be drilled and tapped for a 3/8"-24 pressure switch. This would be a good spot to screw the brake light pressure switch into, for a '66 or earlier model truck.
 
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Old Jul 17, 2017 | 01:09 PM
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Originally Posted by ultraranger
If this question is in reference to me, the (new) MC I used is for a 1995 Ford Explorer. NAPA p/n M3246.

It has ISO metric bubble flare ports. The primary port requires an M10 x 1.0 fitting. The secondary port requires an M12 x 1.0 fitting.

The MC bore diameter is 1.062" (1-1/16").

There are two different versions of this MC. One is designed for cruise control and one without. My MC is designed w/o CC.

However, my setup is in a '69 F100 Ranger. My brake light switch is inside the cab. For a '66 or earlier model truck, the Explorer MC, for CC, would probably be the better choice.

If you look back at my previous photo, you'll notice there's a 'rhino horn' (casting boss) sticking up on the front of the MC body. On a '95 Explorer MC w/CC, this boss will be drilled and tapped for a 3/8"-24 pressure switch. This would be a good spot to screw the brake light pressure switch into, for a '66 or earlier model truck.
Hey ultraranger, did you have to add any brackets to this 95 Booster and MC ?
 
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