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    1. #1
      Join Date
      Dec 2021
      Location
      Blacksburg, VA
      Posts
      2

      Summit Rear Disc Brake Coversion Kit 11" Rotors have 7/16 hole and I have 1/2 studs!

      ANYONE PLEASE HELP!!
      I have the Summit rear disc brake conversion kit for my '68 and it has 11" rotors that have 7/16 holes, but I have 1/2 inch studs! Everything else fits great, but I don't want to have to drill out the holes in the rotors everytime I get new rotors.
      Does anyone know the appropriate rotor that I need!! I have searched Summit, Google (which is worthless), and all of the regular car part stores (Oreilly's, Advance, etc.).
      I get mostly FRONT rotor returns. THIS IS KILLING ME AND STOPPING ME DEAD IN MY REBUILD (Pun intended, and working!)
      HELP!
      Jo, Blacksburg, VA



    2. #2
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
      Posts
      4,870
      Country Flag: United States
      Drill the rotors….

      Have fun if those are Cadillac metric calipers. Follow the instructions to a tee….

      Don

    3. #3
      Join Date
      Dec 2008
      Location
      Detroit
      Posts
      2,665
      Country Flag: United States
      They are going to be 7/16 because that is standard for cars of that era. Get a cheap drill press from HF...
      Big dreams, small pockets....

      Chris--
      '72 Cutlass S LSA/T56 Magnum
      Bowler Performance, Forgeline, Speedtech, ATS, Speartech, KORE3, Ridetech coilovers

      Project Motor City Madness

    4. #4
      Join Date
      Dec 2021
      Location
      Blacksburg, VA
      Posts
      2

      Yep, that's what I feared...

      Quote Originally Posted by csouth View Post
      They are going to be 7/16 because that is standard for cars of that era. Get a cheap drill press from HF...

      No worries, new rear brake kit will solve the problem...
      Keep it in the lines!!
      Jo



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