1973 Disc Brake conversion / SBP / 14" narrow steel wheels

Brakes for your Classic Mopar

  1. SGBARRACUDA

    SGBARRACUDA ROY FABO Gold Member

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    Read his original post. He wants to KEEP the SBP.
     
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    • arrow360

      arrow360 Active Member

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      The bottom bolts on my 1973 are HUGE compared to the earlier stuff. I'd say they are at least 1/2".
       
    • moparmat2000

      moparmat2000 FABO Gold Member FABO Gold Member

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      Understood, however just trying to explain in no specific words, why reinvent the wheel so to speak.
       
    • SGBARRACUDA

      SGBARRACUDA ROY FABO Gold Member

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      Well I'm guessing he doesn't want to change the rear to LBP?
       
    • Mr. Sinister

      Mr. Sinister Devastation Manager

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      image.jpeg Like this?
       
    • SGBARRACUDA

      SGBARRACUDA ROY FABO Gold Member

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      • moparmat2000

        moparmat2000 FABO Gold Member FABO Gold Member

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        Maybe not. I converted both cars to BBP. Did it for simplicity over the 4 pot KH setup, parts availability, and availability of many more different styles of wheels. Plus I did it inexpensively with boneyard parts and mix n match w big diameter cordoba rotors and big bore cordoba calipers

        I believe you can get 14x5.5 rims in a steelie BBP.
         
      • Mr. Sinister

        Mr. Sinister Devastation Manager

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        What happened to arrow360?
         
      • moparmat2000

        moparmat2000 FABO Gold Member FABO Gold Member

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        I dunno.
         
      • SGBARRACUDA

        SGBARRACUDA ROY FABO Gold Member

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        I don't know, this has turned out to a 3 way conversation without him.
         
      • moparmat2000

        moparmat2000 FABO Gold Member FABO Gold Member

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        I hope I didnt chase him off by extolling the BBP disc brake virtues.
         
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        • arrow360

          arrow360 Active Member

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          It was a little difficult to get accurate measurements, but it looks like 7/16" bolts on the top (2) and 5/8" on the bottom.
           
        • Mr. Sinister

          Mr. Sinister Devastation Manager

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          Lost in the translation maybe?
           
        • arrow360

          arrow360 Active Member

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          I went out to measure the bolts on the car. They appear to be 7/16" & 5/8" bolts!
           
        • Mr. Sinister

          Mr. Sinister Devastation Manager

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          Ok the 2 spindles you saw in my pics were for 10" drum on the left and 9" drum on the right which one looks like yours?
          Actually top one is 9" bottom one is 10" I just went back and looked at pic
           
        • arrow360

          arrow360 Active Member

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          The "bottom" image has what appears to be the same bolt pattern, but the bottom bolts are considerably larger than the top.
           
        • moparmat2000

          moparmat2000 FABO Gold Member FABO Gold Member

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          If your 73 has 10" front drums, it also has BBJ UCAs. If your going to convert to the 4 piston KH setup you will need the SBJ UCAs.
           
        • Heywodja

          Heywodja The Heartbeat Stops Here FABO Gold Member

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          I have a full set I removed from my 71 dart, small bolt pattern, rotors, spind,les upper and lower control arms, 4 piston calipers. I am in Dallas Texas so shipping may be an issue. PM me if you like
           
        • Mr. Sinister

          Mr. Sinister Devastation Manager

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          He said 9" drum car originally Matt
           
        • moparmat2000

          moparmat2000 FABO Gold Member FABO Gold Member

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          Non swaybar tabbed LCAs are all the same all the way to 76. Only difference is swaybar tabbed arms. 67-72, and 73-76
           
        • arrow360

          arrow360 Active Member

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          Mine has 9" drums.
           
        • moparmat2000

          moparmat2000 FABO Gold Member FABO Gold Member

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          I must have missed that. I do know I got a nice clean set of BBJ UCAs off a 74 valiant w 10" drums. Was a junkyard score at $50
           
        • Heywodja

          Heywodja The Heartbeat Stops Here FABO Gold Member

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          see my post i have what ya need
           
        • arrow360

          arrow360 Active Member

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          Mine has no sway bar.
           
        • Garrett Ellison

          Garrett Ellison Amateur driver on public roadway, do not imitate.. FABO Gold Member

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          These are drilled for 4 or 4-1/2 inch BC on the same rotors and hubs, but requires an inner wheel diameter of 12.92 inches. It would allow for upgrading wheels in the future, if need be. I don't have my spare wheel handy to measure at the moment but this may be your best option, as it uses the factory six cylinder spindles.
          1973 DODGE DART Wilwood Front Medium-Duty Disc Brake Kits 140-2719-B
           
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