What is the rate of this sway bar?

This sway bar has a rate of 428 lb/in deflection. This indicates its stiffness and how much force it takes to twist it.

Does this sway bar come with all the necessary hardware for installation?

Yes, this kit includes new end links and greaseable sway bar bushings with zinc plated clamshells. It is designed to bolt directly into place on your GM G-Body vehicle.

What is the difference between this sway bar and the factory one?

This UMI Performance sway bar is 1.250 inches in diameter and made from 4140 chrome moly steel, making it significantly stiffer than the factory 7/8-inch bar. This increased stiffness helps to reduce body roll and improve cornering performance.

UMI Performance 78-88 GM G-Body 1.250in Solid Chrome Moly Front Sway Bar

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Specifications

Brand: UMI Performance
Part #: 3035-R
UPC: 3035-R

UMI Performance 78-88 GM G-Body 1.250in Solid Chrome Moly Front Sway Bar

Name: UMI Performance 78-88 GM G-Body 1.250in Solid Chrome Moly Front Sway Bar
Brand: UMI Performance
Price: 282.87 USD
Availability: InStock

$282.87

On Backorder — Expected to ship by Apr 22, 2026

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

UMI Performance 78-88 GM G-Body 1.250in Solid Chrome Moly Front Sway Bar. Reduces body roll and improves cornering for a more responsive feel.

Key Features

Fits 1978-1988 GM G-Body vehicles.
Constructed from 1.250-inch solid 4140 chrome moly steel for increased rigidity.
Reduces body roll, understeer, and improves cornering capabilities.
Includes new end links and greaseable sway bar bushings with zinc plated clamshells.
CNC bent as one piece for maximum strength and performance.
Available in a durable bright red or gloss black powder coat finish.

⚠️ 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

UMI Performance is known for making well-built suspension components that improve the handling of classic American muscle cars. This 1.250-inch solid front sway bar is designed to give your GM G-Body vehicle a more balanced and responsive feel, especially when you're taking corners. It's a direct bolt-in upgrade that makes a noticeable difference in how your car handles.

Crafted from strong 4140 chrome moly steel, this sway bar is significantly stiffer than the factory 7/8-inch bar, which helps reduce body roll and minimize understeer. This means less lean when you turn and a more planted feel on the road. The bar is CNC bent as a single piece for maximum strength, and it comes with new end links and greaseable sway bar bushings featuring zinc-plated clamshells for added durability. You can choose between a bright red or gloss black powder coat finish to match your build.

This sway bar fits a range of GM G-Body vehicles, including models like the Chevrolet Monte Carlo, Buick Regal, and Pontiac Grand Prix from the late 70s through the late 80s. Installation is straightforward, as it bolts directly into the factory mounting locations without needing any modifications.