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Instruction Sheets for Part Number UPI-3046
UMI Performance 1978-88 GM G-Body Brake Conversion Brackets 3046
Part Number: UPI-3046
UMI Performance 1978-88 GM G-Body Brake Conversion Brackets
Disc Brake Kit Components, 1978-1988 GM G-Body, C5/C6 Front Brake Conversion Brackets, Pair
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Estimated Ship Date: Nov 3, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
3046
Part Type:
Product Line:
Summit Racing Part Number:
UPI-3046
Disc Brake Kit Component Type:
Caliper bracket
Quantity:
Sold as a pair.
Notes:
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.
UMI Performance 1978-88 GM G-Body Brake Conversion Brackets
UMI brake conversion brackets are designed to mount 1997-2013 C5 or C6 front calipers and rotors to the 1978-88 GM G-Body factory spindle. Conversion brackets are CNC laser-cut from 3/8 in. thick mild steel and feature a heavy-duty black powdercoat finish. Each kit includes Grade 10.9 mounting hardware and complete detailed installation instructions.
The instructions include a detailed list of GM part numbers needed to complete the brake grade upgrade. Note, 17 in. wheels are needed for C5 brakes, and 18 in. wheels for C6. As with all UMI Performance products, these brackets are 100 percent manufactured, tested, and raced out of Philipsburg, PA.
Additional details:
* Adapts C5/C6 caliper to factory spindle. Slight modification of spindle required
* Uses turned down GM G-body hub/rotor or Wilwood 270-12304
* Fits Wilwood SLC56 caliper
* Beautiful gloss black powdercoat
* Grade 10.9 mounting hardware
* Track-tested in brutal conditions
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