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Cadillac Seville / Cadillac Eldorado Forum Discussion, Questions about drilled and slotted rotors in Past Cadillac Vehicle Discussion; Guess you don't want to hear I barely get any rust on my cars rotors living in the south N*Caddy.... ...
  1. #16
    rodnok01's Avatar
    rodnok01 is offline Cadillac Owners Connoisseur
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    Guess you don't want to hear I barely get any rust on my cars rotors living in the south N*Caddy....
    I've had rotors almost crumble when I was in the north from all the rusting.

  2. #17
    the recluse is offline Cadillac Owners Connoisseur
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    Re: Questions about drilled and slotted rotors

    I bought the AC Delco slotted and drilled rotors and bumped up to the dual piston calipers from the Lucerne...let me tell you the car stops on a dime...and I don't have ABS as my system is down (and throwing codes)...never locks up with proper braking technique...

    The slotted and drilled rotors do just fine and do not deter braking power...they were designed to improve it...the slots are for removing heat and friction gasses that form over the face of the rotor between the pad...the holes are for added cooling...they are prone to cracking if you don't know how to drive or are heavy footed on the brake, say, driving in NASCAR, F1, or something of that nature...

    The fact that they put them on just about every known high end sports car/race car/rally car/F1 should be testament to the fact that they were designed for more than just "looking cool"...





    I understand some people don't believe in brake upgrades, that's fine, I don't think cars should be on 25" wheels either but to each his own...
    rottonj likes this.

  3. #18
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
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    Re: Questions about drilled and slotted rotors

    Actually the Buick Lucerne brake calipers were something I was kind of looking into, I always thought these cars could have used better brakes (larger caliper).
    Would the caliper be still small enough to fit inside the 16" rim?

    Also you changed both the caliper AND the caliper bracket from what I see right?
    Did Lucerne came with the brake pad wear sensors?

    Man I was fiddling with this idea for years...

    And yes the cars should not have 25” rims, totally agree wit the statement, don’t know where this rim thing started, but just about any Honda Civic or minivan has the rims now.



    ------------------------------------


    After looking a bit on Rockauto.com looks like the calipers were used in few other Buick models actually few other GM vehicles including the last DTS ('06 and up). None however seem to had brake pad wear sensors...

  4. #19
    EcSTSatic's Avatar
    EcSTSatic is online now Cadillac Owners Connoisseur
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    Re: Questions about drilled and slotted rotors

    I had a case driving through the Blue Ridge mountains where the 4 wheel disk brakes on my Mercedes were fading. I would imagine that drilled/slotted rotors would be of some help. The OEM ventng wasn't enough.

  5. #20
    jake99seville's Avatar
    jake99seville is offline Cadillac Owners Member
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    Where did u get AC Delco drilled and slotted rotors?

  6. #21
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    Submariner409 is offline If it won't run, stick on fender vents
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    Re: Questions about drilled and slotted rotors

    Talk to Chris in parts at Rippy Cadillac over there >>>> or look through RockAuto - but remember: Lucerne brakes are from a Buick ......... and the rotors may be PowerStop, not AC Delco.

    I did a simple change to EBC Ultimax slotted rotors and ceramic Redstuff pads - say what you will, but it made a significant positive (good) change to the car's brake system.

  7. #22
    ELDO GUY's Avatar
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    Re: Questions about drilled and slotted rotors

    Just got all my 'Stuff" from rock auto last night so Im gonna try and get in the Garage and knock this out Sunday AM Everything looks good from power stop. Im curious how the drag reduction clips from Raybestos will work out. Has any one ever tried these things cost $10.00 to all 4 wheels . Seems like a sound idea .

  8. #23
    rottonj is offline Cadillac Owners Member
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    Re: Questions about drilled and slotted rotors

    My daily driver is a 2008 Pontiac Grand Prix GXP, it came from the factory with drilled rotors. I just replaced them after 75k with new AC Delco parts purchased from Amazon. I found no cracks or rust when replacing(Connecticut car driven every winter), and replaced the ceramic pads . Every car I have put the ceramic pads on has had some breaking squeak, and yes the pads were bedded in properly. I have used cheaper sets of drilled and slotted rotors on various Camaro's and Firebirds with similar results. Good luck with the brake job.

  9. #24
    ELDO GUY's Avatar
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    Re: Questions about drilled and slotted rotors

    Tx. I hope to knock this out quickly , but every dream can quickly turn into a nightmare !

  10. #25
    the recluse is offline Cadillac Owners Connoisseur
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    Re: Questions about drilled and slotted rotors

    N*Caddy: The calipers are from a 2006 Lucerne, the rotors are for our Caddy's. I use stock 16" Caddy chrome rims with NO clearance issues...and no, they don't have wear indicators on them...I just have mine zip tied to my strut tower. I do enough regular maintenance to just look at the pads and find out where they sit...

    Jake99: Bought the rotors at NAPA and they were AC Delco, not PowerStop. These were them: http://www.napaonline.com/Catalog/Ca...41R_0129722640 I liked them because they weren't riddled full of holes, just enough to do the job...
    They are listed as NAPA, but shipped as AC Delco. I used Centric (from RockAuto) in the rear...

    I did replace the entire caliper bracket because the Lucerne rotors are 13", Caddy's are 12". These here (both sides, of course): http://www.napaonline.com/Catalog/Ca...40A_0407452601

    The pads sit on the very edge of the rotor, but still make full contact to all surfaces. You will need four (4) 1/2" washers (like a fender washer) that are approximately .040"-.045" thick to offset the difference between the Lucerne bracket (noted in picture) and the Cadillac brackets, as well as align the proper side to side pad placement...place between the wheel hub and the brackets on all four bolt holes.

    They may be hard to find, and they need to be that thick...

    Also, use thread locker LIBERALLY...



    The other problem I had was that the AC Delco slotted/drilled rotors were thick, very thick, some .060"+ over my standard rotors...now you can have them turned down or (what I did) sand down the actual pads (about .030" a side). The pads could NOT be installed otherwise. After burn in, I removed the pads again to make sure the contact surface was 100%

    Everything is, unless otherwise noted, just direct bolt on. Soft lines are a little tight, but work. Clearances are tight, but with use become non issue. Best part is, everything is off the shelf at the parts store...nothing is special order.

    Car stops EXCEPTIONALLY well at any speed; and with needed heavy use, holds up well with no fade. I can honestly say I have reduce my skidpad by about 40'-50' at minimum...

  11. #26
    X-Hibition is offline Cadillac Owners Member
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    Re: Questions about drilled and slotted rotors

    This is the write up I have been waiting for, thank you Recluse. Nice real world details.

  12. #27
    the recluse is offline Cadillac Owners Connoisseur
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    Re: Questions about drilled and slotted rotors

    NP hope it answers it all...

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