Spring & Strut Compressors
FAQ
How do I choose the right spring compressor for my suspension?
Figure out what kind of spring you’re dealing with first. Loose coil springs usually call for a coil spring compressor, while anything built around a shock body needs a strut compressor made for that style of assembly. If you’re working with stiff, high-rate coils — common in dirt and late-model cars — you’ll want a heavy-duty unit so the tool stays stable while you’re loading it.
When should I use a strut compressor instead of a basic spring compressor?
Any time the spring is wrapped around the shock. A proper strut compressor keeps the whole assembly straight while you load it, which cuts down on binding and keeps you from tweaking the strut body. A basic coil tool won’t hold things square enough for that kind of job.
Are shock spring compressors different from coil spring compressors?
Yes. A shock spring compressor is designed to safely compress the shorter, tighter springs found on shocks or coilovers. Traditional coil spring compressors are longer and meant for full-length coil springs.
How do spring compressor tools improve safety and setup work?
A good spring compressor prevents uncontrolled movement while you adjust preload, replace springs, or service shocks. Stable, even compression helps you keep the assembly centered and eliminates dangerous twisting or spring walk-out.
Can I use these compressors for both dirt and asphalt suspension work?
Absolutely. Whether you’re tuning a dirt late model, an asphalt stock car, or a modified, a reliable spring compression tool gives you controlled, repeatable adjustments no matter the rate or coil design.
How does Earnhardt ensure safety and reliability in its compression tools?
Each spring compressor, strut compressor, and coil spring compression tool is tested for load capacity, thread strength, jaw grip, and smooth operation through repeated cycles. We verify stability under real suspension loads to ensure safe, repeatable performance.
Can Earnhardt help me choose the right compressor?
Of course. Whether you’re working with a strut compression tool, heavy-duty coil spring compressor, or specialized shock spring compressor, our team can recommend the safest, most efficient tool for your suspension style, car class, and shop environment.
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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.







