1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

rotor thickness

Discussion in 'Intermediate CJ-5/6/7/8' started by Rich M., Feb 22, 2016.

  1. Feb 22, 2016
    Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maryland
    Joined:
    Mar 23, 2008
    Messages:
    2,203
    Anyone know the minimum rotor thickness for 76-78 big brake rotor? Thanks!
     
    Rich M., Feb 22, 2016
    #1
  2. Feb 23, 2016
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
    Joined:
    Oct 25, 2006
    Messages:
    5,801
    It should be stamped into the outside edge of the rotor.
     
    47v6, Feb 23, 2016
    #2
  3. Feb 23, 2016
    Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maryland
    Joined:
    Mar 23, 2008
    Messages:
    2,203
    Savvy. I'll clean off the rust....
     
    Rich M., Feb 23, 2016
    #3
  4. Feb 23, 2016
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    1.120" minimum refinish thickness, 1.119" discard thickness. Maximum lateral runout .005", maximum parallelism .005".
     
    nickmil, Feb 23, 2016
    #4
  5. Feb 25, 2016
    Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maryland
    Joined:
    Mar 23, 2008
    Messages:
    2,203
    Well they measured 1.149 my guy thought it was a gamble if they would turn with the amount of rust on them. Rock auto here I come! _(again...)
     
    Rich M., Feb 25, 2016
    #5
  6. Feb 25, 2016
    SFaulken

    SFaulken Active Member

    Bellevue, WA
    Joined:
    May 24, 2011
    Messages:
    1,178
    1.149"? That seems odd. Because as far as I know, brand new, they're 1.125" thick....
     
    SFaulken, Feb 25, 2016
    #6
  7. Feb 25, 2016
    Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maryland
    Joined:
    Mar 23, 2008
    Messages:
    2,203
    These are the 76-78 " big brake" rotors. Later ones are thinner.
     
    Rich M., Feb 25, 2016
    #7
  8. Feb 25, 2016
    SFaulken

    SFaulken Active Member

    Bellevue, WA
    Joined:
    May 24, 2011
    Messages:
    1,178
    Aye. I know. I have them on my '70 after converting it. Looks like calling them 1 1/8" thick is just a "nomenclature" thing. I just checked mine and they're actually closer to 1.170 or so.
     
    SFaulken, Feb 25, 2016
    #8
New Posts