Hydroboost Mounting Plates

[chevychase]

Originally Posted by Captainfab

AS far as I know, this plate will work with that hydroboost unit, but it will not bolt up to the '73-'87 firewall. Are the '73-'87 hydroboost units not readily available in your area like they are here?

So assuming the 2002 2500HD hydroboost will work with this bracket will it mount to a "67-72" Firewall?

[Captainfab]

The hydroboost bracket will not be a direct bolt on, with the '67-'72 firewall. You will need the '67-'72 booster bracket that I sell, for it to be a bolt on deal. Of course you could drill some holes and enlarge the center hole on your firewall, and bolt it up that way, if you're ok with doing that.

Originally Posted by chevychase

So assuming the 2002 2500HD hydroboost will work with this bracket will it mount to a "67-72" Firewall?

[El Campo]

Got mine today. Outstanding craftsmanship and beautiful parts. Fast shipping too! Great doing business with you, sir. Pictures will be posted when I get installed.
Posted via Mobile Device

[Captainfab]

Thanks for the kind words Matt

I'm looking forward to seeing your installed pics.

Originally Posted by El Campo

Got mine today. Outstanding craftsmanship and beautiful parts. Fast shipping too! Great doing business with you, sir. Pictures will be posted when I get installed.
Posted via Mobile Device

[cadtorque]

I'm very interested in your booster bracket and hydro-boost adapter plate. Any idea if the hydro-boost unit will bolt up to a 67-70 drum/drum master cylinder?

[Captainfab]

That master should work as long as it is the power brake master.

Originally Posted by cadtorque

I'm very interested in your booster bracket and hydro-boost adapter plate. Any idea if the hydro-boost unit will bolt up to a 67-70 drum/drum master cylinder?

[boonedogs72]

looking for the hydro boost bracket and firewall adapter for 67-72. I have a hydro boost setup out of a 87 diesel pickup and its going in a 72 chevy blazer.

[Captainfab]

Here is the for sale thread for the '67-'72 booster brackets

http://www.67-72chevytrucks.com/vboa...d.php?t=347484

Let me know.

Originally Posted by boonedogs72

looking for the hydro boost bracket and firewall adapter for 67-72. I have a hydro boost setup out of a 87 diesel pickup and its going in a 72 chevy blazer.

[woodwright]

Have you got any pictures yet of a hydroboost unit on a 67-72 firewall?

[Captainfab]

No I don't. No one has posted any installed pics that I know of for the '67-'72's. There are a couple of the '60-'66's though.

Originally Posted by woodwright

Have you got any pictures yet of a hydroboost unit on a 67-72 firewall?

[El Campo]

So I mocked up the Hydroboost on my 72 firewall. Ended up getting one out of a 99 Chevy 3/4 ton van. Not complete yet but these pictures will give you an idea of what it will look like. I did not even need the little square plate as the bracket that was on the hydroboost fit perfectly into the bigger bracket. Will post more when I get more done. Now I decided to go with disc brakes all around so have to figure out a master cylinder that will work

[Captainfab]

That looks good on there. Yeah some of the OEM mounting plates will work with my booster bracket. Some of them are offset though, and not centered as that one is. So we can add the mid to late 90's full sized vans to the list of hydroboost with the correct flat mounting plate.

For a disc/disc master you can use the '63-'82? Corvette unit.

Thanks for posting a pic of your install

[El Campo]

Would this one work? BENDIX Part # 11749
And do you happen to have any idea what size the outlets are on it? I THINK that it is 1/2 on the one circuit and 9/16 on the other.

[Captainfab]

Comparing the numbers, I would say it is a '77-'82 Vette master. The A1 Cardone part number is #101423 for the '67-'76 unit, and #101749 for the '77-'82 unit. A brand new '77-'82 unit is #131749. I don't know what the difference is between the 2 year groups. They both show to have a 1.125" bore.

I do believe the 2 fitting sizes are 1/2" and 9/16"

[El Campo]

I'm going to get the latter one. Will order it tomorrow and will update here soon. Am putting all AN lines on it too and will include part numbers for others who want to go that route too
Posted via Mobile Device

[jlsanborn]

Looks like this is the way I want to go. So, what year Astros use the HB? Are they all disc/drum and is that master appropriate for a disc/drum C10? Where is the prop valve on the Astro? Probably different threads for the brake lines huh? My current set is was manual drum/drum and I've done a front disc swap. Any old pump will work if you tee the return lines?
Thanks!

[Captainfab]

I believe all Astro/Safari vans had the hydroboost except for the first few years. I'm pretty sure from '90 and up would have them. Pull and Save usually has several Astro/Safari vans. I don't remember just where the prop valve is. I'm thinking it is right next to the master. One of my customers is using the Astro master on his pickup. Seems to work fine. Yes you can use a standard pump and just tee the return lines.

Here are some pics and info on the Astro/Safari master in Bubba327's thread

http://www.67-72chevytrucks.com/vboa...365170&page=17

Originally Posted by jlsanborn

Looks like this is the way I want to go. So, what year Astros use the HB? Are they all disc/drum and is that master appropriate for a disc/drum C10? Where is the prop valve on the Astro? Probably different threads for the brake lines huh? My current set is was manual drum/drum and I've done a front disc swap. Any old pump will work if you tee the return lines?
Thanks!

[Dragun12]

so why do you need an adapter to put a hydroboost on the 60-66?

[dennislbrooks]

http://67-72chevytrucks.com/vboard/s...d.php?t=175714




Sounds like a good deal from captainfab.

[Captainfab]

These hydroboost adapter plates are a direct fit you any of my booster brackets. There are some OEM hydroboost mounts that alse have the same pattern. My booster brackets are a direct bolt on for the given application, so you do not have to drill any holes in your firewall. The only modification you will have to make is to lengthen the pushrod. There are a few pics in the link posted above.

Originally Posted by Dragun12

so why do you need an adapter to put a hydroboost on the 60-66?

[Captainfab]

Thanks for posting that link. Some good info there

Originally Posted by dennislbrooks

http://67-72chevytrucks.com/vboard/s...d.php?t=175714




Sounds like a good deal from captainfab.

[Dragun12]

oh ok so your kit just makes less of a hassle put on so say a disc/disc hydroboost on very awsome and the price well i have not found anything with that good of price. because i cant remeber what year of hydroboost. but i know the hydroboost we put on are 66 is a drum/disc hydroboost and it just bolted right on the only thing we had to do was alittle modding to the push rod i dont have any pictures oh how my dad and me modded the pushrod nor do i remember but i do have the pics of it bolted up.

[Captainfab]

I have never seen a hydroboost with a factory bracket like that. What is the application for it? If that is what you have then you don't need either of my brackets. Just like there are some factory hydroboost brackets that bolt directly to my booster brackets. This hydroboost mounting plate is not need in those instances. My brackets are designed to be used with brake components that are readily available at most wrecking yards.

[AusTx68]

Hey Captain, I picked up a refurbished 93' Chevy hydroboost. The plate was removed but the nut is in place. I was interested in picking up your plate but had a question. If I just go with the plate and mount it directly to the firewall do I still need to lengthen the rod? I know mounting it to the firewall requires opening the hole and drilling new holes for the plate.

[Captainfab]

I can't say for sure if you will have to lengthen it or not. I would say more than likely you will.