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Home » KORE3 Big-Brake Kits » Big-Brake Brackets


The KORE3 Hybrid Big-Brake Front Caliper Bracket Kit is the latest evolution in big-brake options for the early GM A/F/X-Body short-spindle applications. These brackets adapt 355mm x 32mm [14" X 1.26"] C6 Z06 rotors and twin-piston C5/C6 calipers to your early GM A/F/X-body muscle car for maximum stopping power and value. Please refer to the KORE3 Big-Brake Application Chart for details regarding specific vehicle compatibility.

  1. KORE3 Hybrid GM Short-Spindle kit is designed for forged short-spindles only, of which there are three (3) variations as described below. GM made a fourth short-spindle design that is not compatible with this kit. The spindle is cast, not forged, and can be readily identified by the integral cast caliper mounts and steering arms.

  2. Kit is 100% bolt-on. No welding, cutting, or grinding necessary if KORE3 components are used.

  3. Minimum �18" wheels are required for caliper to wheel clearance. Not all �18" wheels will fit depending on wheel design, overall width, offset/backspacing, etc. Please verify fitment prior to ordering using the appropriate KORE3 fitment template. Wheel fitment is the buyer's responsibilty. Please contact us if you have any questions regarding your specific application or the proper use of the templates.

The following items are included in this kit:

  • Installation instructions

  • (2) KORE3 GM short-spindle hybrid big-brake conversion brackets
    • CNC laser cut & machined
    • 5/8" steel plate
    • 2.5 lb [1.14 kg] each w/o hardware
    • Yellow zinc-chromate plated for corrosion resistance

  • (1) Hardware kit
    • (4) M14-2 x 35mm HHCS, Class 10.9
    • (4) 14mm Flat Washers
    • (1) Threadlocker
    • Additional fasteners vary depending on the short-spindle variation that you have. There are three (3) different forged GM short-spindles as follows; please select the proper short-spindle variation when ordering:

1. Drum Spindle: 1/2-20 2. Drum Spindle: 5/8-18 3. Disc Spindle: 5/8-18
1. Drum Spindle:
1/2"-20 UNF
2. Drum Spindle:
5/8"-18 UNF
3. Disc Spindle:
5/8"-18 UNF
GM Short-Spindle C5/C6 Disc Conversion GM Short-Spindle C5/C6 Disc Conversion
Price: $140.00

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KORE3 News:

Notice: Most C6 Z06 calipers are on national backorder and currently unavailable with no ETA.

KORE3 is now offering products by Hydratech Braking Systems™, the industry leader in hydraulic brake assist conversions for the pro-touring market. While we're updating our website, please let us know if you have any questions concerning their hydraulic brake assist systems.

- Big-Brake Kits
- Billet Aluminum Hubs
- FlexKORE™ Hoses

Upcoming Closures:

KORE3 will be closed Dec 25, 2017 through Jan 2, 2018.

KORE3 Industries LLC
32885 HWY 99E
Tangent, OR 97389

Tech: (541) 924-5673
Sales: (800) 357-5467

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