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09-28-2017, 10:19 AM
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#1 |
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Registered User
Join Date: Jan 2012
Location: Austin, TX
Posts: 543
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Hydrovac Brake Booster Questions
So, I'd like to keep my 60 GMC 1000 series some what original equipment and I noticed the hydrovac (midland?) was probably the brake booster used on this truck originally.
A couple questions: 1. Can this be used on a truck that has the clutch and brake master cylinder? I *think* this might be possible since it appears that the booster is 'remote' and not installed directly to the master cylinder. 2. I know it uses the vacuum from the carburetor, would my Stromburg WW2 work with this? 3. Does anyone have pictures of one of these installed on their 1/2 ton CHevy or GMC? 4. Things to look out for with these? 5. Rebuild yourself or send it to someone? If send it, recommendations? Thanks for any details with this. |
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09-28-2017, 04:30 PM
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#2 |
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Registered User
 
Join Date: May 2011
Location: Jasper, AL
Posts: 224
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Re: Hydrovac Brake Booster Questions
Yes, the remote mount Hydrovac was used on 60-62 GMC and Chevy trucks . It mounts on the inner fender , separate from the master cylinder.
A carb or intake vacuum port should be fine. There are places that rebuild them. Rebuilt units are available from Cardone (eBay) for 175-225.
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1960 Chevy Apache10 Short Fleetside 1961 Chevy Apache10 Short Fleetside 1961 Chevy Apache20 Fleetside 1963 Chevy C10 Short Fleetside 1965 Chevy C10 Short Stepside 1965 Chevy C10 Long Fleetside 1966 GMC 1000 Long Fleetside 1966 Chevy C10 Short Fleetside Last edited by oldusafmsgt; 09-28-2017 at 04:45 PM. |
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09-28-2017, 06:11 PM
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#3 | |
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Registered User
Join Date: Jan 2012
Location: Austin, TX
Posts: 543
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Re: Hydrovac Brake Booster Questions
Quote:
Let me find a part number and perhaps someone on here can verify I’m buying the correct one. Thanks for the response! |
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09-28-2017, 06:42 PM
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#4 |
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Moderator
  
Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: Hydrovac Brake Booster Questions
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Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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09-29-2017, 12:48 PM
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#5 | |
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Registered User
Join Date: Jan 2012
Location: Austin, TX
Posts: 543
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Re: Hydrovac Brake Booster Questions
Quote:
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09-29-2017, 01:27 PM
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#6 |
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Registered User
Join Date: Feb 2012
Location: pleasant valley--placerville ca
Posts: 3,039
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Re: Hydrovac Brake Booster Questions
It will not come with the mounting bracket (unless you have one) Mine had a home made mounting bracket-- Pics of how mine was mounted.
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1961 chevy K10 my build is------------61K10 build |
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09-29-2017, 01:31 PM
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#7 | |
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Registered User
Join Date: Jan 2012
Location: Austin, TX
Posts: 543
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Re: Hydrovac Brake Booster Questions
Quote:
It seems there are several variants of the 'hydrovac booster'. There is one on ebay, but I'm uncertain if it's correct for our trucks. Thoughts? http://r.ebay.com/dnitQH I know the ad says it is, but the experts are on this site. |
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09-29-2017, 01:40 PM
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#8 |
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Registered User
Join Date: Feb 2012
Location: pleasant valley--placerville ca
Posts: 3,039
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Re: Hydrovac Brake Booster Questions
I will get you some more pics as mine is not on the tk anymore. Not forsale
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1961 chevy K10 my build is------------61K10 build |
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09-29-2017, 02:40 PM
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#9 |
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Registered User
Join Date: Feb 2012
Location: pleasant valley--placerville ca
Posts: 3,039
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Re: Hydrovac Brake Booster Questions
Thats not cheap if it doesn't work. google hydrovacs many out there rebuilt. Other tks used them too. Mine is completely different as you can see.
a member here 60-66 might chime in on this. He is one of the experts on here.
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1961 chevy K10 my build is------------61K10 build |
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09-29-2017, 02:49 PM
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#10 | |
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Registered User
Join Date: Jan 2012
Location: Austin, TX
Posts: 543
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Re: Hydrovac Brake Booster Questions
Quote:
Those pictures are super helpful. Thanks! I'm actually pondering getting one from remaninc.com now. They offer a: Remanufactured Bendix Single Diaphragm Hydro-Vac (Casting Number: 379900) |
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09-29-2017, 03:22 PM
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#11 |
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Registered User
Join Date: Feb 2012
Location: pleasant valley--placerville ca
Posts: 3,039
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Re: Hydrovac Brake Booster Questions
Probably your best deal as the e-bay one is used. You can make the brackets pretty easy.
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1961 chevy K10 my build is------------61K10 build |
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09-30-2017, 01:00 PM
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#12 |
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Registered User
Join Date: May 2015
Location: Central Massachusetts
Posts: 494
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Re: Hydrovac Brake Booster Questions
Just some more food for thought...
If you do decide to have it remanded, I'd highly recommend going through DS Brake Parts in VA. http://dspartscompany.com/ I have a Midland Hydrovac on my '61 GMC 5000, it's a harder to find model and I could not for the life of me find a remanded one to buy online. Talked to the guy on the phone, shipped it down and they had it back in time for me to get to a truck show. Worked perfect... And the price was fair. |
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09-30-2017, 04:28 PM
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#13 | |
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Registered User
Join Date: Jan 2012
Location: Austin, TX
Posts: 543
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Re: Hydrovac Brake Booster Questions
Quote:
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09-30-2017, 05:56 PM
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#14 |
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Registered User
Join Date: Oct 2016
Location: san bernardino ca
Posts: 1,611
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Re: Hydrovac Brake Booster Questions
Imo that can be made.
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