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C5 C6 Front Brake Conversion Brackets


Caliper Bracket Material: Steel
Caliper Bracket Color: Black
Master Cylinder Included: No
California Proposition 65: WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
Brake Hoses Included: No
Front Caliper Included: No
Brake Booster Included: No
Disc Brake Kit Type: Heavy-duty
Disc Brake Kit Type: Manual
Disc Brake Kit Type: Manual or power assist
Disc Brake Kit Type: Power assist
Mounting Hardware Included: Yes


Kit includes brackets, bracket mounting hardware and detailed instructions.
Note: Requires slight modification to factory spindle. Installation requires a hub. Hub can be a GM G-Body rotor turned down or Wilwood P/N 270-12304. All other items needed to complete the installation are GM P/N’s. Instructions include detailed P/N list.
The UMI P/N 3046 brake conversion bracket is designed to mount 1997-2013 C5 or C6 front calipers and rotors to the 1978-1988 GM G-Body factory spindle. Conversion brackets are CNC laser cut from 3/8” thick mild steel and feature a heavy duty black powder coat finish. Each kit includes Grade 10.9 mounting hardware and complete detailed installation instructions. Supplied installation instructions included detailed list of GM part numbers needed to complete the brake grade upgrade. 17” wheels needed for C5 brakes and 18” wheels for C6. As with all UMI Performance products, these brackets are 100% manufactured, tested and raced out of Philipsburg, PA – USA.
Features and benefits:
CNC laser cut 3/8” thick mild steel.
Adapts C5/C6 caliper to factory spindle. Slight modification of spindle required.
Uses turned down GM G-Body hub/rotor or Wilwood 270-12304. Wilwood hubs available from UMI Performance.
Beautiful gloss black powder coat.
Grade 10.9 mounting hardware.
Used on UMI’s Green Machine Monte Carlo. Track tested in brutal conditions.

Additional information

Weight 1.8144 lbs
Dimensions 20.32 × 15.24 × 10.16 in
Mounting Hardware Included


Caliper Bracket Material


Caliper Bracket Color


Master Cylinder Included


Brake Hoses Included


Front Caliper Included


Brake Booster Included


Disc Brake Kit Type

Power assist