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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Replacement for a hydrovac?

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Old Oct 20, 2016 | 08:04 AM
  #1  
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Replacement for a hydrovac?

I had my hydrovac on my 56 F750 rebuilt 14 months ago and it was rarely used.

It failed on me just like the man said it would because they only had old NOS parts in which to rebuild it.

Is the there a remote power brake unit that I can locate under the floor that would have the power and displacement of fluid that will replace the hydrovac?

On my 55 F100 I had installed such a unit and it works well but only has a 9" booster and there is probably not enough fluid to operate the F750 brakes.

Thank you for any replys,
Roger Walling
Chicopee Ma.
 
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Old Oct 20, 2016 | 09:36 AM
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Sounds like the nos parts your rebuilder used might have dried out.
You may have already tried this, but if you want to stay original I would check out Hemmings for a rebuilder.
If you are not that worried about keeping it original, you might try finding a latter model. We still have a couple of mid 70's F750s out on the farm and the hydo vac's on those worked very well. However a quick search just now did not yield any body selling those. You might have to move into a newer model. Ford is back in the mid range truck business again. Check out the hydro vacs they are using now and see if they might work as a upgrade.
Good luck,


B
 
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Old Oct 21, 2016 | 04:07 AM
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If you have a real Napa over there that have books like my store has. They matched
mine a big Bendix for a 1953 F900. Of course it wasn't on the shelf but had it the
next day. think it was 185 bucks and I believe F7,8 and F9's probably the same.
 
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Old Feb 16, 2017 | 06:22 PM
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hi ! bring this back up because i,m looking for a replacement hydrovac for my 1942 2 ton ford.got a quote for rebuilting the original and its a bit high. so i,m thinking of using a different model. but i would not like to buy something that doesn,t work. i think all our trucks use a 1 ¼ inch master cylinders. i got rear 1½ inch cylinders and front are 1 3-8.
what are you guys using!!!
thanks brian
 
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Old Feb 16, 2017 | 06:31 PM
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Originally Posted by bernette
hi ! bring this back up because i,m looking for a replacement hydrovac for my 1942 2 ton ford.got a quote for rebuilting the original and its a bit high. so i,m thinking of using a different model. but i would not like to buy something that doesn,t work. i think all our trucks use a 1 ¼ inch master cylinders. i got rear 1½ inch cylinders and front are 1 3-8.
what are you guys using!!!
thanks brian
So how high is a bit high?
 
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Old Feb 16, 2017 | 08:11 PM
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they said 700 to 900,plus shipping back and forth. add tax to that,its would cost well over 1g.
 
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Old Feb 17, 2017 | 04:13 AM
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I bought a re-man for my F-6 at O'Reilly's for $185 exchange.
 
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Old Feb 17, 2017 | 05:21 AM
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hi bob ! do you remember what model you used!
 
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Old Feb 17, 2017 | 06:57 AM
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for my F6 i went to a chevy master cylinder for a 5700 truck. It was 1 1/4 bore and had enough volume for the drum brakes. Of course i had to make the brackets.
 
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Old Feb 17, 2017 | 01:16 PM
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Originally Posted by bernette
hi bob ! do you remember what model you used!
The O'Reilly number is 51-8056. It was the exact Bendix replacement. Sorry, I don't have the Bendix number with me. I found it by doing an internet search with the OEM 8T-2005 part number from the book. Correction: It was $200 exchange.
 
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Old Feb 17, 2017 | 05:41 PM
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thanks ! i will do some research on those two options.
 
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Old Feb 18, 2017 | 11:28 AM
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pweng1 . i,m not finding much information ! what year was the 5700 !
 
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Old Feb 18, 2017 | 11:53 AM
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Originally Posted by bernette
pweng1 . i,m not finding much information ! what year was the 5700 !
They are ubiquitous. How many do you want?

https://www.google.com/search?source...1-8056+booster
 
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Old Feb 18, 2017 | 01:09 PM
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Originally Posted by bernette
hi bob ! do you remember what model you used!
1948/52 F4/F5/F6 & F5/F6 Cab Forward (8T-2005) is different than 1953/56 F700/900 & C700/900 Cab Forward (TFAA-2005-A).
 
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Old Feb 18, 2017 | 01:34 PM
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I'm not completely sure if the booster from a 1942 2-ton would be the same as a '48 - '52 2-ton (F-6). I'm just speculating.
 
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