1. Cuda416

    Cuda416 FABO Gold Member FABO Gold Member

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    Alright, getting ready to put the disc swap onto our 65 Valiant.

    I have the following

    from a 87 5th ave
    Spindles
    2.75" calipers (front mount)
    11" rotors (just shy)

    From a 73-76 A body
    Uppwer control arms
    Upper ball joint
    Lower ball joint (bolt and nut style)

    We plan to use banjo lines from a 69 Camaro, seems this is the thing to do. We're also replacing the lines front to back, splitting it into two circuits and putting a dual resivior MC on. Still need the adapter plate, but that's in the noise.

    Assuming (yeah I know) this is all good, do I need a "special" MC pushrod?
     
  2. kursplat

    kursplat FABO Gold Member FABO Gold Member

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    so i'm assuming you're doing manual brakes? you need a manual brake push rod. make a wanted add or get one from Mancini or Dr Diff. make sure you get the rubber piece that holds the rod in the MC
     
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    • Cuda416

      Cuda416 FABO Gold Member FABO Gold Member

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      Yes, manual brakes.


      Thanks
       
    • MOPAROFFICIAL

      MOPAROFFICIAL FABO Gold Member FABO Gold Member

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      Never heard that before, other than a power version .
       
    • Cuda416

      Cuda416 FABO Gold Member FABO Gold Member

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      Never heard of what exactly?
       
    • MOPAROFFICIAL

      MOPAROFFICIAL FABO Gold Member FABO Gold Member

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      A brake rod difference for drum to disc, but its been a long time since i fooled with converting.
      Maybe i read the question wrong.lol
       
    • Cuda416

      Cuda416 FABO Gold Member FABO Gold Member

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      Ah, i think it has something to do with the adapter adding 3/8" but I'm not 100% sure, hence the question. Thanks for clarifying
       
    • Commando66

      Commando66 She's a beaut Clark!

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      If your car was a manual brake car originally, your manual brake pushrod will work with your manual disc master cylinder. I'm assuming you're using a 73-76 a-body manual master cylinder.
       
    • Cuda416

      Cuda416 FABO Gold Member FABO Gold Member

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      Actually went with one from a 5th ave. That work?
       
    • Commando66

      Commando66 She's a beaut Clark!

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      I used the a-body master because it has a 15/16" bore and provides a better pedal feel. The larger the bore, the harder the pedal feel.
       
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      • MOPAROFFICIAL

        MOPAROFFICIAL FABO Gold Member FABO Gold Member

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        Just need a measurement to know.

        Net search or doc diff specs on rod listing perhaps?
         
      • Cuda416

        Cuda416 FABO Gold Member FABO Gold Member

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        Correction, not from a 5th. Bore on the unit I got (Dorman M39476) us 24mm, just a tad over 15/16.
         
      • Cuda416

        Cuda416 FABO Gold Member FABO Gold Member

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        We eventually plan on swapping in an 8.8 rear with discs as well.
         
      • Cuda416

        Cuda416 FABO Gold Member FABO Gold Member

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        Ok, an update. To avoid having to use an adapter, then needing a different pushrod, I went ahead and bought a MC for a 73-76 dart. The one with the 15/16 bore was/is for power brakes, and the other one listed for manual brakes had the larger bore (seems backwards to me but I looked at a few different suppliers to make sure). Now, though, I have a master cylinder that doesn't have the retaining groove inside the pushrod grommet.

        https://www.oreillyauto.com/detail/...101571/4559072/1975/dodge/dart?q=101571&pos=0

        Pretty sure it's not going to work, and if not, which one do I need to get.
         
      • Cuda416

        Cuda416 FABO Gold Member FABO Gold Member

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        Specifically which one did you use that is for manual brakes with a 15/16 bore?
         
      • Commando66

        Commando66 She's a beaut Clark!

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        73-76 Dodge Dart manual disk brakes. Try Dr Diff’s prices because his kit is 100% complete for $450
         
      • Cuda416

        Cuda416 FABO Gold Member FABO Gold Member

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        All of the 73-76 Dodge Dart manual disk brake units I've seen are over an inch. I'll look again. Thanks
         
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