What is DOM steel tubing?

DOM stands for Drawn Over Mandrel. It's a type of steel tubing that's manufactured using a process that results in a more consistent wall thickness and a smoother internal surface compared to standard welded tubing. This makes it stronger and more durable for suspension components.

Do these control arms come with new hardware?

This kit includes the control arms and bushings. It is recommended to consult the manufacturer's installation guide or contact UMI Performance directly to confirm if any specific hardware is included or if you need to reuse your original hardware or purchase additional fasteners.

How do these control arms help reduce wheel hop?

Stock control arms can flex and allow bushings to deflect under load, which contributes to wheel hop. These tubular arms are made from stronger material and are designed with tighter tolerances and less bushing deflection, providing a more solid connection that helps put power to the ground more effectively.

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

Specifications

Brand: UMI Performance
Part #: 501518-B
UPC: 501518-B

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

Name: UMI Performance 71-75 GM H-Body Upper & Lower Control Arm Kit
Brand: UMI Performance
Price: 380.79 USD
Availability: InStock

$380.79

On Backorder

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

Fits 1975-1980 Oldsmobile Starfire. UMI Performance tubular control arm kit reduces wheel hop and improves cornering.

Key Features

Fits 1975-1980 Oldsmobile Starfire, 1971-1975 Chevrolet Vega, 1975 Buick Skyhawk, 1975 Chevrolet Monza, and 1975 Pontiac Astre.
Fabricated from strong 1.250-inch DOM steel tubing for durability.
Features fluted, greaseable bushings for improved suspension performance and longevity.
CNC machined for accurate tolerances, ensuring a precise fit.
Includes both tubular rear lower and tubular upper control arms.
Designed as a direct bolt-on replacement, simplifying installation.

⚠️ 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 looking to firm up the rear suspension on your 1975-1980 GM H-Body, this tubular control arm kit from UMI Performance is a solid option. It replaces the stock stamped steel arms with well-built tubular units, which makes a big difference in how your car handles, especially when you're accelerating hard or taking corners. The stock arms can flex and allow the bushings to deflect, leading to that annoying wheel hop and a general feeling of looseness. This kit is designed to minimize that deflection.

Crafted from 1.250-inch DOM steel tubing, these arms are TIG welded for strength and feature fluted, greaseable bushings that are CNC machined for precise fit. This means you get a more direct connection to the road, helping to improve track consistency and make your car feel more planted. It's a direct bolt-on replacement, so you won't need to cut or weld anything to get it installed. This upgrade is great for anyone looking to get more out of their classic cruiser or even take it to the occasional track day.

Before you order, especially if you have a 1975 model, it's important to double-check that your vehicle actually has rear upper control arms. Some 1975 H-Bodies, like the Vega Cosworth, came from the factory with a panhard bar and torque arm setup instead. If your car has the upper arms, this kit will fit right in.