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disc off my 12 bolt and onto my new 14?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 1990K5, Dec 3, 2001.

  1. 1990K5

    1990K5 1/2 ton status

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    i just bought a 60/14 combo, i have rear disc now and i want to still use my 79 seville calipers that are bolted to my 12 bolt (e-brakes are hooked up and they work fine) is this possible? what brackets and disc do i use? are 8-lug disc too thick for my seville calipers? thx j.c.
     
  2. HarryH3

    HarryH3 1 ton status Author

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    Yep, the rotors for the 14-bolt disc brake setup are too thick for the Seville calipers. [​IMG] Maybe if you used half-worn brake pads you could get them to fit.... [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  3. 1990K5

    1990K5 1/2 ton status

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    then what calipers do you ues that have e-brakes?
     
  4. 90blzr

    90blzr 1/2 ton status

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    El Dorado calipers.
     
  5. HarryH3

    HarryH3 1 ton status Author

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    Yep, Eldorado rear calipers. 76 to 78 models ONLY, if I recall correctly. They are rare and expensive. [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  6. ricka

    ricka Registered Member

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    Would you mind telling me about your 12-bolt disc brake set-up? I'd
    like to know if you got a kit or did it yourself, what parts you used,
    what they came off of, how you hooked the emergency brake up, etc.
    Did you notice an improvement in stopping power after you did it?

    I have a 12-bolt with Warn's full floater kit, so this might complicate
    things, but it might make it easier too...

    -------
    Rick Anderson (rick.d.anderson@tektronix.com)
    Tektronix, Inc. Beaverton, OR 503-627-2630
     
  7. michaelm

    michaelm 1/2 ton status

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    what is the thickness of your current rotor
    i believe ford sourced 8 lug rotors can be found as thin as 1"
    my dodge rotors are 1.5"
    the chevs are ? what ? 1.3"
     
  8. 1990K5

    1990K5 1/2 ton status

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    my calipers are off a 79 seville, disc off a 92 1/2ton 4x4 chevy front, made my own brackets, tossed the fact. a.b.s., no proportioning valve, stops great!
     
  9. HarryH3

    HarryH3 1 ton status Author

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    Doesn't sound like you're running a 14-bolt full floater in the rear.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     

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