Why do I need upper control arm reinforcements on my Mustang?

The upper control arm mounting points on 1979-2004 Ford Mustangs are known to weaken over time, especially with increased torque and aggressive driving. These reinforcements add strength to prevent damage and maintain suspension integrity.

What kind of driving makes these reinforcements necessary?

These reinforcements are particularly beneficial for drag racing, hard launches, and any driving that puts significant stress on the rear suspension. They are also highly recommended if you've upgraded to stiffer bushings or spherical rod-ended control arms.

Does this kit come with all the necessary hardware for installation?

This kit includes the upper reinforcement boxes. Refer to the manufacturer's installation instructions for a complete list of required hardware and tools for proper installation.

UMI Performance 79-04 Ford Mustang Upper Control Arm Reinforcement

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Specifications

Brand: UMI Performance
Part #: 1010
UPC: 1010

UMI Performance 79-04 Ford Mustang Upper Control Arm Reinforcement

Name: UMI Performance 79-04 Ford Mustang Upper Control Arm Reinforcement
Brand: UMI Performance
Price: 87.03 USD
Availability: InStock

$87.03

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1979-2004 Ford Mustang. UMI Performance Upper Control Arm Reinforcement Box Reinforcements strengthen weak mounting points.

Key Features

Fits 1979-2004 Ford Mustang.
Reinforces the upper control arm mounting points on the unibody.
Helps prevent cracks and tears in the sheet metal from high torque and hard driving.
Recommended when using aftermarket control arms, polyurethane bushings, or spherical rod ends.
Designed to maintain suspension geometry under load.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Ford Mustang 1979-2004

Product Details

If you're pushing your 1979-2004 Ford Mustang hard, especially with aftermarket control arms or performance bushings, you know how much stress the rear suspension mounting points can take. These areas are notorious for weakening over time, leading to cracks and damage that can really hurt your car's performance and stability. This upper control arm reinforcement kit from UMI Performance is designed to beef up those critical mounting points on the unibody.

This kit specifically targets the upper control arm mounts, adding extra strength where it's needed most. It's a smart move if you're running stiffer bushings, spherical rod ends, or just putting down serious torque. Adding these reinforcements helps prevent the sheet metal from flexing or tearing under load, ensuring your suspension geometry stays consistent during hard launches and aggressive driving.

Reinforcing these areas is a common and necessary step for anyone serious about drag racing or performance driving in these Mustangs. It's a well-built piece that helps protect your investment and keeps your rear suspension working as it should.