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Brake Rotor - center hole diameter ?

Discussion in 'Technical Chat' started by euro911s, Apr 14, 2015.

  1. Apr 14, 2015 at 11:45 AM
    #1
    euro911s

    euro911s [OP] 'Plays with Toys'

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    I used to have a a TRD supercharger on the Tacoma, converted back to NA when I bought the Tundra. The SC was tons of FUN!!!
    Does anybody have a rear brake rotor handy from a 1st gen Tacoma that you can measure the diameter of the center hole?

    I need to buy a centering cone for the Ammco 4000 brake lathe at our auto shop class, and I don't have any rotors to measure here.

    Thanks in advance ...
     
  2. Apr 14, 2015 at 11:46 AM
    #2
    rcsb jon

    rcsb jon Well-Known Member

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    139.7mm
     
  3. Apr 14, 2015 at 1:36 PM
    #3
    euro911s

    euro911s [OP] 'Plays with Toys'

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    I used to have a a TRD supercharger on the Tacoma, converted back to NA when I bought the Tundra. The SC was tons of FUN!!!
    Hey thanks …
     
  4. Apr 14, 2015 at 1:44 PM
    #4
    jberry813

    jberry813 Professional Fluffer Moderator

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    ...too much shit to list.
    Huh? That would make the center bore 5.5 inches. That's the center-to-center measurement of opposing lug nuts...not the center bore of the rotor. Center hole can't be the same width as the lug nuts...or the lug nuts wouldn't have anywhere to bolt to.


    Toyota trucks use a 106mm hub bore.
     
  5. Apr 14, 2015 at 4:18 PM
    #5
    rcsb jon

    rcsb jon Well-Known Member

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    Correct 106mm, my error
     

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