What is the main benefit of using adjustable control arms?

Adjustable control arms allow you to fine-tune your rear end's position and pinion angle. This helps with fitting larger tires, installing aftermarket rear ends, and optimizing your vehicle's performance for better traction and reduced wheel hop.

How do the Teflon-lined rod ends improve performance?

The Teflon-lined spherical rod ends eliminate rear suspension bind, allowing the suspension to articulate more freely. They also act like solid bushings, reducing deflection during hard acceleration, which is beneficial for drag racing.

What should I check if my vehicle is a 1975 model?

For 1975 H-Body vehicles, it's important to verify if your specific model uses rear upper control arms. Some 1975 models were equipped with a panhard bar and torque arm setup instead.

UMI Performance 71-75 GM H-Body Adjustable Upper & Lower Control Arm Kit

Specifications

Brand: UMI Performance
Part #: 501619-B
UPC: 501619-B

UMI Performance 71-75 GM H-Body Adjustable Upper & Lower Control Arm Kit

Name: UMI Performance 71-75 GM H-Body Adjustable Upper & Lower Control Arm Kit
Brand: UMI Performance
Price: 467.83 USD
Availability: InStock

$467.83

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Fits 1975-1980 Oldsmobile Starfire. UMI Performance adjustable rear control arms improve traction and reduce wheel hop.

Key Features

Fits 1971-1975 GM H-Body vehicles including 1975-1980 Oldsmobile Starfire.
Adjustable upper and lower rear control arms allow for fine-tuning of rear end position and pinion angle.
High-quality Teflon-lined spherical rod ends reduce suspension bind and bushing deflection.
Acts as a solid bushing for drag racing applications, minimizing deflection.
Improves rear suspension traction and decreases wheel hop.
Allows for proper suspension articulation for better performance.

⚠️ 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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Will this fit your vehicle?

Product Details

If you're working on a 1971-1975 GM H-Body, like your 1975-1980 Oldsmobile Starfire, and want to get the rear suspension dialed in, this adjustable upper and lower control arm kit from UMI Performance is a solid option. These arms replace your stock ones and use high-quality Teflon-lined spherical rod ends. This setup helps eliminate binding in the rear suspension, allowing it to move more freely, and also acts like a solid bushing for drag racing, which cuts down on deflection when you're launching hard.

The adjustability here is key. You can fine-tune the position of your rear end, which is super helpful if you're fitting larger tires or installing an aftermarket rear axle. The upper control arms are adjustable specifically to set and adjust your pinion angle. Getting these angles right is crucial for putting the power down effectively. Expect improved traction, less wheel hop, and a setup that still handles well on the street.

When installing on a 1975 model, it's a good idea to double-check if your specific H-Body uses upper control arms or a panhard bar setup, as some 1975 models switched to a torque arm system. This kit is designed to work with vehicles that have rear upper control arms.