Suspension

Suspension components at Earnhardt are engineered, machined, and tested to deliver reliable control under real racing pressure. From complete race car chassis parts to precision-fit arms, springs, and links, every piece is built to keep your setup consistent lap after lap.

82 products

Birdcages & Components

Our birdcages and related components are built to keep rear axle movement smooth, controlled, and consistent every racing...

31 products

Arms, Bushings & Spacers

Our control arms, bushings, and spacers are engineered to keep suspension geometry tight and predictable under racing pressure....

32 products

Springs & Bump Stops

Engineered to the Earnhardt standard, our spring coil and bump stops are built to manage weight transfer, absorb...

27 products

Sway Bars & Links

Built to the Earnhardt standard of grit and precision, our sway bar links are machined to deliver consistent,...

FAQs

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Every chassis has its own habits. Pay attention to how yours loads up in the corners, how it settles on throttle, and the kind of surface you’re running on. That’ll tell you what the suspension needs. And if something doesn’t look right or you’re piecing together a new car, we can look at it with you and point you toward the right parts.

Focus on how each component affects geometry and stays consistent under load. The right part should control movement, reduce flex, and support the way you want the car to behave on entry, mid-corner, and exit. Strength and long-run stability are the core things to keep in mind.

Each part handles a different job. Arms and bushings set the car’s geometry, springs and bump stops manage weight transfer, sway bar links control stiffness, and birdcages let the rear axle rotate cleanly without binding. Understanding what each system does helps you build a setup that works together instead of fighting itself.

Your suspension determines how weight transfers, how much grip the tires maintain, and how quickly the chassis settles after input. The right arms, springs, and links help you keep the car planted under load and reduce unwanted movement through bumps or transitions.

The chassis sets the foundation for suspension geometry. A well-built race car chassis keeps mounting points stiff, reduces flex, and allows the suspension to work the way it was designed to: delivering smoother weight transfer and better corner stability.

Each design goes through controlled bench testing, alignment verification, and long-term track evaluation across multiple surfaces. Components must show consistent performance through heat cycles, torque loads, and repeated impacts before they’re approved for production.

Yes. We’ve worked on just about everything over the years — new race car chassis, old frames, custom-built one-offs, you name it. Bring the car or the parts you’ve got, and we’ll look over the geometry and mounting points with you. From there, we’ll point out the suspension combo that’ll actually work on your track.

Contact us

At Earnhardt Technologies Group, racing is in our DNA. Every component is precision-machined in Mooresville, NC, built to endure the toughest conditions on the track.

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