Who makes an Aluminum master cylinder for 70 dart front manual disc brakes

Brakes for your Classic Mopar

  1. 73dart360

    73dart360 Well-Known Member

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    Looking to upgrade master cylinder hopefully one that wont leak down onto new paint
    70 dart front manual disc any suggestions please . ?
     
  2. Locomotion

    Locomotion Well-Known Member

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    You'll need the correct 2-bolt adapter to mate a later model aluminum master cylinder for an F-body with manual disc brakes. It still uses the manual brake pushrod. Not sure how or which distribution block fits into the set-up
     
  3. lilnoah

    lilnoah Supercharged slant six with 4 speed and 8.25

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    Get one from Cass at Dr Diff. I got mine from him. Great guy and product.
     
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    • Sedanman

      Sedanman 67-9 Valiant specialist

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      I bought mine from him too
       
    • lilnoah

      lilnoah Supercharged slant six with 4 speed and 8.25

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      Converting from drums to disc brakes was best move I made
       
    • jos51700

      jos51700 Green Bearing thread connoisseur

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      F- body master cylinder and adapter plate. Cheap, easy, and all MOPAR
       
    • Sedanman

      Sedanman 67-9 Valiant specialist

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      get one with a bore size below 1" for best pedal and stopping power. I recommend the 15/16
       
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      • KosmicKuda

        KosmicKuda FABO Gold Member FABO Gold Member

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        I converted my old Mopars to synthetic DOT5 brake fluid. Does not attack paint.
        I second the 15/16 or smaller bore.
         
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        • abodyjoe

          abodyjoe Well-Known Member

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          Wilwood sells a nice one.

          Can also buy one for 85 diplomat but that's s crap shoot because a lot of them aren't alum. When I was looking I found one alumn local to me and it was all beat to hell.
           
        • 73dart360

          73dart360 Well-Known Member

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          I just ordered it from dr diff thanks guys
           
        • Dartswinger70

          Dartswinger70 Awww man...

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          Does aluminum not leak? I am going through it now, nice paint on firewall ruined because of old style cast iron MC. The MC isn't that old either.
           
        • 69_340_GTS

          69_340_GTS Well-Known Member

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          The cover on the "billet" Willwood m/c leaks around the screws. Those tiny screws are easy to drop/lose. I am replacing mine with a Baer m/c which has normal screw-on caps.
           
        • abodyjoe

          abodyjoe Well-Known Member

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          they make one that looks liek the 85 diplomat. its the one i have.. not that billet thing..
           
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          • abodyjoe

            abodyjoe Well-Known Member

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            thats a wilwood one in this pic.. it has a different piston size then the billet one you are talking about i believe..


            DSC_0013_1.jpg
             
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            • 69_340_GTS

              69_340_GTS Well-Known Member

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              004-vi.jpg
              Ah, yes. I forgot Willwood sold those too. My preference was to not have the plastic tank. But you're probably better off with the one you got. The billet one I have s nothing but a pain in the ass!
               
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              • tjpatte

                tjpatte Well-Known Member

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                Cass is where I got mine too.
                 
              • BillGrissom

                BillGrissom Well-Known Member

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                Dr Diff sells an adapter plate + MC for ~$95. Has been linked several times in the last 2 months if you search. He recently chimed in that his are specially made w/ a smaller bore (7/8"D?) than the similar-looking 1980's Dodge truck MC. Or, for $30 you can buy an adapter plate on ebay from several sellers and use almost any 2-bolt aluminum MC. I use one for a 95-99 Breeze/Cirrus/Sratus w/ ABS (7/8" bore) on my 3 1960's Mopars [two via adapter plates, one on a Breeze booster (see avatar)].
                 
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