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#588206 - Fri Oct 30 2009 09:21 PM Hydrovac brakes
BigBolt Bancroft Offline
New Guy
Registered: Tue Oct 27 2009 10:41 PM
Posts: 18
Loc: Maine
I am looking for hydrovac brake components for my '50 GMC two ton. Does anyone have any for sale or know where I can find some?
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#588209 - Fri Oct 30 2009 09:27 PM Re: Hydrovac brakes [Re: BigBolt Bancroft]
Grigg Offline
Extreme Gabster
Registered: Tue May 10 2005 12:00 PM
Posts: 3869
Loc: Lexington, VA
Try an ad in the Swap Meet section right here on this site.

Also check NAPA.
There are newer versions still used, or more recently used on trucks. If you aren't going to be original you may find a cheaper and easier to get perhaps even better replacement for the original. I know my local NAPA has a picture book with a number of different newer ones to pick from.

Grigg
_________________________
1948 Chevrolet 6400 with:
- Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel hydroboosted disc brakes
1952 Chevrolet 3800 pickup

"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..."
-Henry Maudslay-
Click here for all pictures
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#588220 - Fri Oct 30 2009 09:48 PM Re: Hydrovac brakes [Re: Grigg]
BigBolt Bancroft Offline
New Guy
Registered: Tue Oct 27 2009 10:41 PM
Posts: 18
Loc: Maine
Thanks Grigg. I will look into it at my local NAPA. How recently did they have that kind of equipment? Do you have any idea of a make, model, and year that I could start with?
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#588258 - Fri Oct 30 2009 11:10 PM Re: Hydrovac brakes [Re: BigBolt Bancroft]
Grigg Offline
Extreme Gabster
Registered: Tue May 10 2005 12:00 PM
Posts: 3869
Loc: Lexington, VA
I don't know exactly, personally I would (and have) run a hydrobooster with a dual circuit master cylinder, so I haven't fully researched the replacement hydrovac units.

Seems I've seen them on 80's model ford medium duty trucks.
And on lots of imported cab over trucks usually on the right side just behind the battery box, at least that's what I think they are..

Grigg
_________________________
1948 Chevrolet 6400 with:
- Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel hydroboosted disc brakes
1952 Chevrolet 3800 pickup

"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..."
-Henry Maudslay-
Click here for all pictures
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#588270 - Fri Oct 30 2009 11:43 PM Re: Hydrovac brakes [Re: Grigg]
Tom Lovejoy Offline
Wrench Fetcher
Registered: Sun Feb 11 2007 12:00 PM
Posts: 227
Loc: so cal
I got mine rebuilt at fleet pride, I think their nation wide. It was pretty cheap and quick and the brakes are working well - good luck.
_________________________
1947 Chevy COE 2-Ton
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#588296 - Sat Oct 31 2009 05:49 AM Re: Hydrovac brakes [Re: Tom Lovejoy]
Freq2002 Offline
Shop Shark
Registered: Wed Dec 20 2006 12:00 PM
Posts: 1028
Loc: Whidbey Island, WA
NAPA should also have a connection to have your unit rebuilt.
As for use, they are still built and used on forklifts. Cost can be the real issue in the long run.
_________________________
'56 GMC 370 dump "tater"
'70 VW Volksrod "the Black Bomber"
'00 GMC Sierra

I dig all cars, old and new, whether they were hammered out of American iron, German steel, or Japanese tin cans. Being unable to appreciate them all is missing out on a world of great things.
But thats just MY opinion! :P
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#588304 - Sat Oct 31 2009 07:58 AM Re: Hydrovac brakes [Re: BigBolt Bancroft]
w.rice Offline
New Guy
Registered: Wed Oct 28 2009 10:56 AM
Posts: 1
Loc: northwestern p.a.
hey there, I have a vacuum booster unit that came off a 54' model 630, dont know if that would help u or not, I sold my gasser and went with air brks.
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#588326 - Sat Oct 31 2009 09:56 AM Re: Hydrovac brakes [Re: w.rice]
Super55 Offline
Shop Shark
Registered: Sun Sep 24 2006 12:00 PM
Posts: 1113
Loc: Maple Ridge, BC
Are you missing the Hydrovac completely? I couldn't rebuild mine because the end cap was broken. I had to buy a new unit. You can get one at http://vehiclesofvictory.com/. I had to change the two fittings, the inlet and outlet because they were not the same size, but that was no problem. Just be sure that when you remove them you don't let the lubricant leak out.
_________________________
A day without laughter is a day wasted- Charlie Chaplin

1948 Chevy 2-Ton
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#589407 - Tue Nov 03 2009 02:57 PM Re: Hydrovac brakes [Re: Super55]
Bodyguy Offline
New Guy
Registered: Wed Apr 01 2009 03:10 PM
Posts: 12
Loc: Southern, Wis
I just put a Hydrovac unit and master cylinder in my 73 C60. That might be something to look into. It only cost $65 for the master from NAPA and $135 for the Hydrovac. The set up looks pretty universal and would be easy to adapt to most vehicles.

Just a thought.
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#589506 - Tue Nov 03 2009 08:10 PM Re: Hydrovac brakes [Re: Bodyguy]
Cajunhcm Offline
New Guy
Registered: Wed Oct 22 2008 08:42 PM
Posts: 10
Loc: Lafayette,Louisiana
Bodyguy, do you have those NAPA numbers on hand?
I'm also going through my brakes and i'm missing my hydrovac.
Thanks,
Alex
_________________________
"If you can't fix it with a hammer, you've got an electrical problem."
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