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The Perfect Umi 64-72 Gm A-body Coil Over Conversion Brackets Kit -1in To +1in Ride Height - 250lb Spring Rate Series [8DFqfT3a]

$47.99 $153.99 -69%

UMI A-Body Coil Over Conversion KitThe UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit is a comprehensive solution for enhancing the performance and aesthetics of your classic GM A-Body vehicle. This kit is designed to provide you with full con

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UMI A-Body Coil Over Conversion Kit

The UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit is a comprehensive solution for enhancing the performance and aesthetics of your classic GM A-Body vehicle. This kit is designed to provide you with full control over your ride height, spring rate, and damping, allowing for a custom driving experience. The kit features a fortified upper mount, specifically engineered to accommodate a 2-1/2” racing coilover with a double-shear configuration. This ensures both durability and precision in your vehicle's handling.
  • Adjustable Ride Height: Achieve the perfect ride height with the ability to adjust from 1 inch lower to 1 inch higher, giving you the flexibility to tailor your vehicle's stance to your preference.
  • 250lb Spring Rate: Enjoy a stable and responsive ride with the 250lb spring rate, which is perfect for both street and track use.

Engineered for Precision

The lower brackets of this kit are the result of Finite Element Analysis (FEA), ensuring they are both reinforced and designed to bolt directly onto your existing Quick Performance rear lower control arm mounts. This design not only simplifies installation but also maintains the integrity of your vehicle's suspension system. The brackets also feature an adjustment mechanism for trailing arm height, allowing for precise calibration of the instant center. With three available positions, you can fine-tune your vehicle's handling characteristics to match your driving style.
  • Trailing Arm Adjustment: The trailing arm adjustment mechanism provides the ability to precisely calibrate the instant center, resulting in improved handling and stability.
  • USA-Made Quality: This kit is manufactured and tested in Philipsburg, Pennsylvania, using materials sourced from the United States, ensuring the highest quality and reliability.

Compatibility and Installation

This kit is designed for direct installation with Quick Performance rear lower control arm mounts, making it a perfect fit for a variety of GM A-Body models from 1964 to 1972. We advise that you install the brackets first and take measurements from center to center at ride height to ensure precise identification of shock part numbers. With this kit, you can transform your classic GM A-Body into a vehicle that performs and looks like no other.
  • Direct Fitment: The kit is designed to fit directly with Quick Performance rear lower control arm mounts, simplifying installation and ensuring a secure fit.
  • Wide Compatibility: This kit is compatible with a wide range of GM A-Body models, allowing you to upgrade your vehicle regardless of the specific make or model.

What Our Customers Say

January 1, 2026

Absolutely no complaints!

This is a really good and a very useful item.

- Ronda P..

January 1, 2026

Absolutely no complaints!

An excellent tool with a very, very quality design.

- Jared T..

January 1, 2026

Absolutely no complaints!

An outstanding product. It is just about perfect.

- Elianna P..

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