Opinion on brake rotors

Discussion in 'Small Block Tech' started by Mark Demko, Mar 16, 2024.

  1. Mark Demko

    Mark Demko Well-Known Member

    IMG_1903.jpeg IMG_1902.jpeg Pulled my steering gear box for ANOTHER reseal, going to do all the O rings and seals/gaskets.
    While laying on the ground with the left front wheel off I noticed the rotor looks kinda thin, no pulsing or vibrations, it just looks worn.
    They’ve been on there since the mid 80’s so they’re pretty new ( HAHA)
    But I’m concerned about cheap China replacements:eek:
     
  2. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    If they're not presenting any problems, leave them alone. JMO.
     
  3. Mark Demko

    Mark Demko Well-Known Member

    I like that reply:D
    I think I’ll take that advice.
     
  4. CJay

    CJay Supercar owner Staff Member

    They look a little glazed. Plus they're original to the car and grooved. I bet they're under minimum thickness too.

    New set of rotors, service the wheel bearings and a fresh set of semi metallic pads.
     
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  5. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Jason’s suggestion works too:D
     
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  6. TrunkMonkey

    TrunkMonkey Totally bananas

    Grease 'em up and keep driving!
     
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  7. hugger

    hugger Well-Known Member

    Da with 80 grit...and pretend you never seen them
     
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  8. TORQUED455

    TORQUED455 Well-Known Member

    Like Adam said, if there are no problems, leave them alone. You might be surprised how much material has to be removed before they reach their discard thickness. They probably can still be machined during your next brake job. A mic will tell all.
     
    Mark Demko likes this.
  9. Storm1

    Storm1 Silver Level contributor

    I'd put Powerstop's on. (Bedford Park, Illinois) That's what I did. No regrets.
    The only thing better than going fast, is being able to stop after that.
    If I can see the grooves in that rotor with my bad eyes, they're bad! Putting new pads on will only wear into those grooves and wear prematurely. Turning them down, you're going to lose heat dispersion.

    I just did my '17 Silverado today 50k miles (OEM brakes and pads) and they looked nowhere near that bad. Pads were almost to the steel.
    Don't crash that car before you put the Qjet back on! :D

    Seriously, it's not that much to replace them. You're running down the track at top speed.
     
    Last edited: Mar 16, 2024
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  10. Mark Demko

    Mark Demko Well-Known Member

    Is that groove a “wear” groove?
     
    GSX 554 likes this.
  11. Mark Demko

    Mark Demko Well-Known Member

    MMMMM, I think I'll pretend I didnt see em!
     
  12. Mark Demko

    Mark Demko Well-Known Member

    Im quoting myself, LEAVE IT BE!
     
  13. GSX 554

    GSX 554 Gold Level Contributor

    No Mark . That center groove was in the original Rotors from the factory . It is designed to keep the brake pads centered and stable .
     
    Mark Demko likes this.
  14. Mark Demko

    Mark Demko Well-Known Member

    Must be working!
    No issues, if I replace the rotors I’m sure I’ll have issues with warping and flash rust from sitting:rolleyes:
    Oh, and the bearings will go bad from from crappy race material.:rolleyes::rolleyes:
     
  15. 72gs4spd

    72gs4spd Well-Known Member

    EBC makes a nice rotor that’s coated and wasn’t that expensive when I did my brakes. Wilwood dual piston calipers were a nice upgrade as well.
     

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