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Hydroboost with my 465

Discussion in 'The Garage' started by Seventy4Blazer, Sep 5, 2002.

  1. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

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    ok, here it goes... i want to run hydroboost and a hydro clutch....
    as of now i have the parts i need for a 465 in my auto blazer. fully mechanical... well, i need a trans and t case also.. but lets just SAY i have it all.
    (its on the way, give me a break...) ok, so i need a new pedal, a new master cylander, a slave cylender, the pump, resivior and box... ANYTHING ELSE?
    i have a mechanical clutch pedal setup, can i use it? or no?
    can i take parts off an auto pedal setup and swap them over to my manual setup?
    HELP PLEASE!! my mind is going round and round...
    grant
     
  2. thatK30guy

    thatK30guy 1 ton status Premium Member

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    You need the hydro bellhousing, too.
     
  3. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

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    what is the diference? isnt there an adaptor for the mechanical to run the hydro?
    grant
     
  4. fortcollinsram

    fortcollinsram 1/2 ton status

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    Yes you can use the mechanical pedal with a hydro setup but I would try to find the hydro pedal...You would hav eto drill the mech. pedal at exactly the right spot for the clutch master cylinder...you will also need to fab up the clutch master cylinder support bracket that are on the hydro pedal assembly...

    As for the bellhousing, yes AA makes an adapter...not sure on the price though...
     
  5. thatK30guy

    thatK30guy 1 ton status Premium Member

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    The castings on both are a different mold and shape. The hydro has a different mold in it in order to mount the hydro master cylinder to it.

    You can call just about any salvage yard and get one off of any GM truck from '85 to '87 on trucks, and from '85 to '91 on the Blazers, Subs and 1 tons, as long as they are all the "V" series trucks.

    To make it easier to find one, ask any salvage yard for one off an '85 to '87 truck. You should have no trouble finding one.

    Getting the bellhousing will be cheaper than going with an aftermarket bracket, which I've never seen nor heard of.
     
  6. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

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    umm, can i as yu a favor please...
    i can not get onto the AA site... im not sure if it is my browser or what. if you have time, or anyone else can you look up the price please.
    thanks in advance.
    grant
     
  7. fortcollinsram

    fortcollinsram 1/2 ton status

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    Part NUmber is 715535 and it is $40.98! Unless you already have a bellhousing, I would try to find a hydro version b/c you can typically find them for around $40 or so...

    Chris
     
  8. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

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    thanks a lot. i already have a BH, so i think it will be easier to buy the part... i dunno. i will check it out at work. maybe i can make it.
    grant
     
  9. m j

    m j 1/2 ton status

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    AA is for jeepers, you are a fullsize guy so stay away from AA
     
  10. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

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    if they got what i need i need what they got... /forums/images/icons/smile.gif
    grant
     
  11. TopOff

    TopOff 1/2 ton status

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    Yep, get the hydro bell and hydro pedals. IT makes installation SO MUCH EASIER!

    Hydro pedals on my truck, and the clutch is as smooth as butter.

    NO Hydro pedals on my friends '72 K5, it's a bit stiffer, apparently we did not align up the clutch master correctly. The angle of the clutch linkage is off, and probably rubs in the clutch master housing.

    Check it out...
     
  12. m j

    m j 1/2 ton status

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    the factory stuff is so easy and fool proof
     
  13. chulisohombre

    chulisohombre 1/2 ton status

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    did you get thge parts from a jumkyard or bought new?whatv mods did you have to do to the pedals?i have a 72 so just wondering.want to do this in the future so any help now i can have down to use later when i actually find all the parts.
     
  14. Seventy4Blazer

    Seventy4Blazer 3/4 ton status

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    maybe i will get the pedals, and if i can get the BH cheaper than 40 i will get it as well.
    thanks for all your help.
    grant
     
  15. TopOff

    TopOff 1/2 ton status

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    Lining up the master cylinder can be difficult. My friend and I did this on his '72 (obviously different pedal racks). The master was off ~1/2 inch side to side. We had to make a "spacer" on the pedal rack. It was also off up and down and forward and backward ~1/2" we ended up welding a "tab" onto his pedal to bring the mount backward more into the cab, drill a NEW hole as well as a little higher. This STILL isn't quite right. There is some binding within the Master Clutch. I am worried this binding will lead to a pre-mature failure on the master Cyl.

    Lining this all up is critical to easy clutch operation.

    We both have CFII clutch kits. He has an 11" disc on a 402. I have the 12" disc on my 383.

    Mine is quite a bit easier to use than his.

    I got all the new hydro parts from the local stores

    reservoir & cap from dealer = $15
    MC = $58
    Hose from dealer = $21
    Slave = $38

    The bell I got from J-yards (one from M_J Thanks again!)
    I got the pedals from a yard too. $75.

    Someone just posted how the pedals from GMPARTDIRECT.com are really cheap ~$60 or so.

    Check out hydro pics below.

    Good luck.
     

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