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upgrading your square with a hydraulic clutch

Discussion in 'Manual Transmission & Clutch' started by GreaseDog, Apr 14, 2013.

  1. HotRodPC

    HotRodPC Administrator Staff Member

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    I think think I see one of the dimples on a pic from the firewall of an 85 C20. It also looks like maybe a hole is there for the clutch master, but it's got a grommet in it and used for the orange wire that goes to the Th400 kickdown switch. The wire in this pic is laid up on the cowel since the motor and trans have been removed. But if you look to the left of the grommet, I think I see a dimple just outside the grommet with the single orange wire. Kinda makes me think that could be the same hole that would be used for a manual trans truck.

    [​IMG]
     

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  2. highdesertrange

    highdesertrange Full Access Member

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    I will take manual linkage any day over hydraulic. with hydraulic I can't feel the clutch like I can with mechanical linkage. just my opinion. plus I did the hiem joint conversion before they became available, boy I thought I invented something, until I read that guys have been doing this for years. highdesertranger
     
  3. HotRodPC

    HotRodPC Administrator Staff Member

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    I totally agree with you. I raced with Z bar linkage Muncie and loved it. I wanted it for my 4x4 truck too, but I was set straight with it on a 4x4 and it makes perfect sense. With frame flexing and lifts etc, that will throw your Z bar linkage off to the point you don't get clutch disengagement, so for my 4x4, since I do have a hydro bell housing already, that's what I'm going to be going with. If it were a 2wd and I'd be racing, I'd be going Z bar without a doubt.
     
  4. Stewzer55

    Stewzer55 Full Access Member

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    Is the frame bracket removeable for the Z-bar linkage? I know I have an almost complete Z bar setup for my 88 but not sure on that part.
     
  5. HotRodPC

    HotRodPC Administrator Staff Member

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    NO, it actually attaches to the top of the frame rail then carries across to the block or the bell housing depending on what bodystyle of the truck. Squares, the pivot ball is right at the bell housing. 60-66 it's on the block and pretty sure it is on 67-72 too but in a different locaiton of the 60-66. Cars also. This is why the blocks have 2 different bosses for mounting the Z bar pivot ball. Now the later small blocks, DO NOT have tapped bosses for Z bar clutch IIRC, but the bosses are still there.
     
  6. Stewzer55

    Stewzer55 Full Access Member

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    Sounds like I'm going Hydro, but I'm just going to adapt the old bellhousing to a hydro slave.
     
  7. GreaseDog

    GreaseDog Full Access Member

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    Just came across some new information! Someone has taken the hydro pedals and dissected them, and adapted the measurements to a mechanical pedal.

    IMG_122609697343461_zpsbdqjjrx4.jpg
    thanks go out to Josh Harmon(via Facebook) for the pedal modification information.
     
    Pender1 and HotRodPC like this.
  8. bluex

    bluex Full Access Member

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    Sweet! So he added a plate to the pedal for the hydro clutch?
     
  9. HotRodPC

    HotRodPC Administrator Staff Member

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    Great add to this thread @GreaseDog. Looks like you edited it just fine to me. :shrug:
     
  10. GreaseDog

    GreaseDog Full Access Member

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    Thanks Richard! Lol
     
  11. HotRodPC

    HotRodPC Administrator Staff Member

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    Hey, who the hell you calling a Dick???





    :laughing1:
     
  12. GreaseDog

    GreaseDog Full Access Member

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    Lol
     
  13. bluex

    bluex Full Access Member

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    In the middle of my swap now and trying to nail down how to hook my master to the mechanical pedals. I came across this picture of a master mounted up with nothing in the way. I thought I would be helpful to give an uncluttered look at the location.
     

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  14. bluex

    bluex Full Access Member

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    Another good shot of the mounting location
     

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  15. HotRodPC

    HotRodPC Administrator Staff Member

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    I forgot all about this thread. Glad we have this info already. Thanks again. Germy @GreaseDog
     

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