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Van Steel composite spring suspension kit comparisons

Van Steel composite spring suspension kit comparisons

Van Steel Composite Spring Kits: Which C2/3 Corvette Suspension Upgrade Is Right for You?

When it comes to modernizing the suspension on your 1963–1982 C3 Corvette, upgrading to a composite spring kit is one of the single best investments you can make. Getting rid of the heavy, harsh factory steel leaf springs transforms your car's ride quality, eliminates spring sag, and sharpens handling.

Van Steel offers two primary approaches to this upgrade: the ride-height-adjustable ATS-01 and VSD-01 systems, and the factory-restoration VS-42002 and VS-42003 kits.

Choosing the right kit depends entirely on your driving goals. Here is a breakdown of the benefits, pros, and cons of each setup. Also note, none of these kits include rebuild parts for your control arms or trailing arms. You should ensure your bushings and bearings are in good shape before ordering a suspension kit. 

1. Stance & Performance: The Van Steel ATS-01 & VSD-01 Kits

Best for: Drivers looking for an aggressive stance, modern handling, and full control over their Corvette's ride height.

The ATS-01 and VSD-01 systems are engineered for enthusiasts who want to modernize both the performance and the look of their Vette. These kits feature fully adjustable front springs (semi-coil overs) and rear composite springs paired with high-performance shocks (rear shocks are 1" shorter).

The Pros:

  • Fully Adjustable Ride Height: Unlike fixed front coilsprings, these kits allow you to fine-tune exactly how your Corvette sits. Most customers use this system to lower their car by 1” to 1.5”, giving it a sleek, modern stance.

  • Sharper Handling: By lowering the vehicle's center of gravity and pairing it with performance-valved shocks, body roll is reduced, making the car much more planted in the corners. Ride quality is not sacrificed with the ATS kit for small blocks or VSD kit for big blocks. That is, if you don't try to lower the car too much (by bottoming out the shocks)

  • ATS Advantages: Smoother Ride for small blocks with under 400hp. 450 front springs and 330 rear composite spring paired with QA1 single adjustable shocks lets you fine tune your ride quality and handling. A rear sway bar is not recommended for small block street cars for cruising and just mild driving styles.

  • VSD Advantages: Sporty Ride for Small Blocks or Big Blocks. Ideal for cars over 400hp. Has a sporty but not harsh ride quality. The rear sway bar is a must for big block cars and those that are aggressive during high speed cornering.

The Cons:

  • Ground Clearance: Lowering your C3 by an inch or more looks incredible, but it requires more caution when navigating speed bumps, steep driveways, or rough roads.

  • Cost: Single adjustable shocks and custom front springs add some costs some folks may not need to spend. If you don't want front and rear adjustable suspension, the kits below will be easier on the wallet.

 

2. Comfort & Restoration: VS-42002 & VS-42003 Kits

Best for: Cruisers and restorers who want classic factory ride height but demand modern comfort.

If you love the factory look of your C3 but hate the harsh, bouncy ride of outdated suspension technology, the VS-42002 and VS-42003 kits are your answer. These packages combine a rear composite leaf spring with premium QA1 shocks to revitalize your chassis.

The Pros:

  • Restores Factory Ride Height: No guesswork required. These kits are designed to bring your Corvette right back to its original factory-spec clearance.

  • Superior Ride Quality: Replacing the factory steel spring with a composite leaf completely eliminates the harsh "rebound snap" of old steel. Paired with QA1 shocks, it absorbs road imperfections effortlessly. The VS-42003 is the "EZ Ride" setup for small blocks that prefer better ride quality. For big blocks and for those after a "sporty" ride, the VS-42002 is for you. The Street and Slalom 42002 kit is a firm, not harsh ride but handles 400+ hp and protects those rear end components.

  • Lightweight Efficiency: Composite springs weigh a fraction of the heavy factory steel leaf, instantly shedding unsprung weight from your rear axle for more controlled suspension articulation.

The Cons:

  • Zero Height Adjustability: You are locked into the factory ride height. If you eventually decide you want a lowered, aggressive look, you cannot adjust the front spring unless you cut them (this raises spring rate as well).

  • No adjustable strut rods for the VS-42003 EZ Ride kit. 

Final Verdict: Which Van Steel Kit Should You Choose?

  • Choose the ATS-01 or VSD-01 Kits if: You want a modern, low-slung look, love carving corners (VSD kit), and want the freedom to adjust your car's height to your exact preference.

  • Choose the VS-42002 or VS-42003 Kits if: You are doing a classic restoration, want maximum street comfort for long cruises, and prefer to keep your Corvette at its original factory riding height.

Still unsure which spring rate or shock valving matches your build? Contact us to help us plan your build! You can call or text 727-561-9199 or email us through our about us page.