What is the purpose of the Roto-Joint?

The Roto-Joint is a spherical pivot ball with a greaseable Delrin race that allows for 28 degrees of movement. This helps the suspension articulate freely, reducing friction and bind for improved handling and traction, while still being suitable for street use.

How does the included spacer kit work?

The spacer kit is designed to address the difference between the 14mm bolt used in the upper control arm and the 16mm hole in the factory chassis mount. The spacers fill this gap, reducing slop and preventing noise and clunks during acceleration and braking.

Does this control arm require special tools for installation?

This is a direct bolt-on replacement and is designed to use OEM hardware. While basic hand tools are needed for removal and installation, refer to the manufacturer's installation instructions for any specific tool requirements or procedures.

UMI Performance 05-10 Ford Mustang Adjustable Upper Control Arm- Roto-Joint

Specifications

Brand: UMI Performance
Part #: 1062-R
UPC: 1062-R

UMI Performance 05-10 Ford Mustang Adjustable Upper Control Arm- Roto-Joint

Name: UMI Performance 05-10 Ford Mustang Adjustable Upper Control Arm- Roto-Joint
Brand: UMI Performance
Price: 195.83 USD
Availability: InStock

$195.83

On Backorder

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

Fits 2005-2010 Ford Mustang. This adjustable upper control arm with a Roto-Joint improves traction and handling by reducing suspension flex.

Key Features

Fits 2005-2010 Ford Mustang.
Includes a spacer kit to fix the 16mm chassis mount hole to accept the 14mm bolt, eliminating slop and clunks.
Features a spherical Roto-Joint with a greaseable Delrin race for 28 degrees of unrestricted movement.
Constructed from 1.250" x 0.120" DOM mild steel tubing for strength.
On-car adjustability allows for easier alignment changes.
Helps reduce wheel hop and increase rear suspension traction.

⚠️ 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 2005-2010

Product Details

The factory rear upper control arm mount on your 2005-2010 Mustang has a 16mm hole in the chassis mount, but only uses a 14mm bolt. This mismatch can lead to slop, noise, and clunks during acceleration and braking. This UMI Performance adjustable upper control arm addresses that with an included spacer kit. The kit slides into the factory mount, reducing the hole size to 14mm for a tighter fit and eliminating that unwanted movement.

Beyond fixing the factory fitment issue, this control arm is built from strong 1.250” x 0.120” DOM mild steel tubing and features a spherical Roto-Joint. This joint, lined with a greaseable Delrin race, allows for 28 degrees of movement, which is more than enough for bind-free, low-friction operation. This improved articulation helps the suspension move correctly, leading to better handling and precision. It's a 100% streetable setup that also works well for autocross or road racing, absorbing shock and road noise for a smooth ride.

Replacing the factory stamped control arm with this well-built unit helps reduce wheel hop and increase traction. The factory pieces can flex under hard loads, but this direct bolt-on replacement eliminates that flex, giving you better control and improved traction, especially during launches. It's also adjustable on the car, making alignment adjustments more straightforward.