Arms, Bushings & Spacers
Our control arms, bushings, and spacers are engineered to keep suspension geometry tight and predictable under racing pressure. Every trailing arm bushing, sway bar link bushing, and coil spring spacer is machined to tight tolerances for precise fitment, reduced deflection, and consistent load transfer through braking, cornering, and chassis roll. We rely on proven materials and controlled machining practices. This includes aerospace precision machining where it delivers an advantage to ensure durability and repeatable handling. Before any of these components reach our site, they’re run through months of on-track R&D across varied surfaces and conditions to prove they can hold up lap after lap.
FAQs
How do I choose the right trailing arm bushing or coil spring spacer for my setup?
Start by looking at what your chassis actually does on track. The amount of suspension travel, how the car loads up on entry, and how much the rear steps around will tell you what stiffness you need in a trailing arm bushing. When it comes to coil spring spacers or spring spacers, the goal is simple: set the ride height and keep the spring where it needs to be. Once you know what the car is doing, picking the right part gets a whole lot easier.
When should I replace trailing arm bushings or sway bar link bushings?
If the rear of the car starts feeling loose or you’re chasing alignment that won’t stay put, the bushings are usually the first place to look. Any cracking, extra movement, or noise under load is a sign the trailing arm bushings or sway bar link bushings are worn out. Once they start flexing more than they should, the whole suspension gets unpredictable.
What’s the difference between spring spacers, coil spring spacers, and rubber coil spring spacers?
Rubber coil spring spacers quiet things down and take the edge off vibration. Machined coil spring spacers or spring spacers are the better choice when you need a exact preload or ride-height adjustment. Rubber is about comfort and noise control; machined spacers are about precision.
What role do control arms and trailing arms play in handling performance?
Control arms and trailing arms keep the wheel path steady and the suspension pivot points where they should be. When they’re built right, the car tracks straighter under throttle, settles quicker after weight transfer, and holds a more consistent line through corner entry and exit.
Are ETG bushings and spacers suited for high-load racing?
Yes, our parts are designed for repeated compression, chassis flex, and rapid load changes. Each design is proven through long-term testing on multiple tracks to confirm durability before it can even be approved for production.
What tolerances and materials are ETG arms and bushings made to?
We use rigid alloys for our arms and controlled-compound bushings that hold their shape under pressure. Each spacer is machined for accurate height and fitment so your suspension stays consistent lap after lap.
Can ETG help me confirm the right spacer or bushing combination?
Absolutely. Our team can guide you based on your suspension layout, track demands, and handling goals.
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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.