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Hydroboost Conversion Install

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Old 05-11-2009, 09:58 PM
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Originally Posted by howard quick
Using 10mm plate effectively moved the HB unit forward (towards the front of the truck) by 10mm....which turned out to be pretty much spot on for taking the slack out of the pedal.
The recess in the back of the plate is so I can get enough threads to screw the HB mounting nut on.
Got it....that was my thought but am glad to hear my intuition confirmed..thanks
Old 05-11-2009, 10:01 PM
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http://cgi.ebay.com/ebaymotors/Astro...Q5fAccessories

is this the one your speaking of? is anyone able to confirm the mounting holes ? i dont have my truck here or apart to look at . i can drill new hole but if these will work i may just use it.
Old 05-11-2009, 10:19 PM
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Yes...that's the one.
You don't need a tool for the nut either. Use a pair of large footprints, stilsens, adjustable wrench etc..etc..
Old 05-11-2009, 10:22 PM
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in the pdf files uploaded by howard quick he shows the bolt spacing to be 86mm horizontally and 89mm vertically from center to center. divide those numbers by 25.4 (the approximate number of mm's per inch) and it gives you 3.385..."horizontal and 3.5039...."vertical , in the auction the seller lists the spacing as 3.40" horizontal by 3.50" vertical. the bolt spacing is close enough to work. i didnt see a thickness but other than that it looks like a good piece.

using the ebay listing chase posted i checked into the astrovan hydroboost and it looks to be the one with the right bracket for a direct bolt in package, here is a quick search from kragens website. although it is unknown to me if the actual unit would be the same as the one for the newer trucks.

Last edited by 006rcsb; 05-11-2009 at 10:43 PM. Reason: added more stuff
Old 05-11-2009, 10:37 PM
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lol thanks for doing the mm to inch conversion i was beeing lazy . i think i may just drill a hole in the hb plate it seems like it would be easier but im in no hurry so i may come up with something.
Old 05-12-2009, 06:30 AM
  #166  
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Originally Posted by 006rcsb
using the ebay listing chase posted i checked into the astrovan hydroboost and it looks to be the one with the right bracket for a direct bolt in package, here is a quick search from kragens website. although it is unknown to me if the actual unit would be the same as the one for the newer trucks.

Here's the pic of mine that I got off of a 3/4 Van. (dont know what year, but it was newer) The mounting plate fits perfect but the yoke is too long. I just took the mounting plant off and used a truck HB unit. 100% OEM with no drilling required. FTMFW.

Old 05-12-2009, 07:10 PM
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yup kragens lists that model for a 2006 2500 van
http://shop.oreillyauto.com/productd...pe=250&PTSet=A

and i think the longer rod might be offset by the recessed mount in the plate...
Old 05-12-2009, 09:03 PM
  #168  
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I edited Howard Quick's centered plate drawing (converted the numbers to inch).
Attached Thumbnails Hydroboost Conversion Install-hydroboostplate1.jpg  
Old 05-13-2009, 12:45 AM
  #169  
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Originally Posted by 2004SSS
http://cgi.ebay.com/ebaymotors/Astro...Q5fAccessories

is this the one your speaking of? is anyone able to confirm the mounting holes ? i dont have my truck here or apart to look at . i can drill new hole but if these will work i may just use it.
Thats the one. I bought this plate and it lines up perfectly with the stock HB plate mounting holes (this is for a HB of a 98 HD truck). The thread Howard posted from pacificp if my setup that I have ready to install. The only thing I had to do to the plate is file the key a tiny bit and paint it.

The stock HB plate is underneath the ebay plate and as you can see it fits over without any problem.
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Last edited by Whippled2dr; 05-13-2009 at 12:54 AM.
Old 05-15-2009, 10:08 AM
  #170  
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Originally Posted by 006rcsb
and i think the longer rod might be offset by the recessed mount in the plate...
It was over an inch too long.... with the offset.


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