Hydroboost

[toddz69]

Does the output shaft go into the master cylinder?

Yes.

Todd Z.

 

[toddz69]

I will try and check to see if I have any Astro output rods in my stock at home. I pull them along with springs and retaining clips from time to time since I know people need them.

Todd Z.

 

[Pops68]

Here are some pics of the bracket and measurements. It is probably 5 years old - been sitting in the garage since I bought it. Bag of parts has never been opened.

I am guessing the mounting holes are around 3 3/8" on center. Could use wiping off with a wet cloth - which I will do.

Let me know if these helped......

 

[Pops68]

Here are 2 more better pics showing the HB mounting surface

 

[gr8scott]

Thank you for this. Two questions...

1. It appears that there are fittings for the HB allow the use of AN 6 ends. What size hoses should I be using.

They take -6 AN hose. Check out DanWheeler's thread for a parts list. Came in handy when I did mine.

http://classicbroncos.com/forums/showthread.php?t=175818

And yes, we all like pictures!

 

[904Bronco]

Yes.

Todd Z.

Well it goes into the HB unit, but the round rod pushes the master piston in and out...

 

[swmrdrn]

Here are 2 more better pics showing the HB mounting surface

Perfect! Let me get the Astro HB and verify the bolt spacing (unless anyone here knows for sure). Thank you!

 

[swmrdrn]

They take -6 AN hose. Check out DanWheeler's thread for a parts list. Came in handy when I did mine.

http://classicbroncos.com/forums/showthread.php?t=175818

And yes, we all like pictures!

Thank you. That seems to have links and descriptions for all the fittings that I need. Very much appreciated. I couldn't seem to find that using the search feature.

 

[catfan]

Perfect! Let me get the Astro HB and verify the bolt spacing (unless anyone here knows for sure). Thank you!

You'll need a different bell crank, that ones for a 99-04 mustang h-boost.
The holes will work for an Astrovan unit.

 

[swmrdrn]

You'll need a different bell crank, that ones for a 99-04 mustang h-boost.
The holes will work for an Astrovan unit.

Thank you! That makes me wonder if I can just change the bell crank on my existing vacuum booster bracket and if so does anyone sell just the bell crank?

 

[catfan]

Thank you!

If you haven't already bought th Astro HB get the Mustang and it will fit that bracket but you still got to find the rod between the m/c and HB.

 

[swmrdrn]

If you haven't already bought th Astro HB get the Mustang and it will fit that bracket but you still got to find the rod between the m/c and HB.

What year mustang HB would I be looking for and should I get it with the M/C to be sure I have the rod?

 

[904Bronco]

Thank you! That makes me wonder if I can just change the bell crank on my existing vacuum booster bracket and if so does anyone sell just the bell crank?

Yes same guy on EBay (Ray) makes a bell crank assembly for a stock Vacuum assist booster bracket. Have to ask him if it works with on an aftermarket bracket... if that is what you have.

 

[gr8scott]

Thank you! That makes me wonder if I can just change the bell crank on my existing vacuum booster bracket and if so does anyone sell just the bell crank?

Yup, kinda pricey though...
https://www.ebay.com/itm/Early-Bron...m=222736399555&_trksid=p2047675.c100012.m1985

EDIT: This search page works way better than the site search:
http://reedweb.net/classicbroncos.search.html

 

[catfan]

What year mustang HB would I be looking for and should I get it with the M/C to be sure I have the rod?

The rod doesn't come with the m/c either, the junk yard is about the only place you can get HB with the rod in it.

 

[catfan]

I'm not a vendor on here and I don't want to break any rules so I won't comment on some things.

 

[Pops68]

Should I open up my bag of parts and take another pic??

If the Mustang HB and master cylinder are the combined unit as it was removed from the car, why wouldn't it have the rod between the 2 parts??

 

[Pops68]

OK.......here is a pic of the bell crank on my bracket and the parts that were in the sealed bag.

Hope this clarifies things.

 

[catfan]

Should I open up my bag of parts and take another pic??

If the Mustang HB and master cylinder are the combined unit as it was removed from the car, why wouldn't it have the rod between the 2 parts??

You're right, i thought he was talking about rebuilt.

 

[jagbucket]

if you are running an auto why use a bracket ? mount the hydro to the firewall and modify the brake pedal to the clutch area to give yourself more room around the valve cover. you will need to source your parts from a jy to get all the bits needed