ATRACYPART Helper Spring Kit for Trucks & SUVs — 500 lb Rear Suspension Assist, Powder-Coated Heavy-Duty

ATRACYPART Helper Spring Kit is a heavy-duty, bolt-on leaf spring add-on that increases rear suspension support by up to 500 pounds for pickup trucks, SUVs and light trailers.

When carrying heavy cargo or towing, factory leaf springs can sag and compromise handling. This ATRACYPART helper spring kit is a reinforced, powder-coated steel assembly that bolts to your existing leaf pack to restore ride height, reduce rear-end sag and improve overall stability without replacing the entire spring. It’s built to tolerate on- and off-road stress and aims to be a straightforward upgrade for DIYers and shops alike.

How does this kit improve towing and payload performance?

Adding the helper spring increases the rear suspension’s usable load by up to 500 lb, which helps maintain a level stance while towing or hauling. Rather than altering your original springs, it supplements them so the truck carries extra weight more evenly and with less bottoming out.

• Up to 500 lb added rear support capacity
• Progressive assistance reduces abrupt sag as load increases
• Minimizes trailer sway and rear-end droop under load

Is installation difficult and what tools are required?

The kit is engineered for a direct-bolt installation to most leaf spring packs and typically needs only common shop tools. Some vehicles may require basic jacking and bracket alignment, but the design avoids major frame or spring modifications.

• Bolts directly to existing leaf springs on compatible models
• Typical tools: jack, wrenches, sockets, torque wrench
• Suitable for competent DIYers and professional mechanics

Will this fit my truck, SUV, or van model?

ATRACYPART designed the helper spring to match many popular older and newer models across several brands. Check the compatibility list for exact years and models—if your vehicle is listed, the kit should fit with the intended mounting method.

• Fits multiple Chevrolet, Ford, Nissan, Toyota, Dodge, GMC and Mazda models
• Covers common pickup and SUV platforms from the 1970s through recent model years
• Refer to the included compatibility guide before purchasing

What are the construction and longevity features?

The assembly uses heavy-gauge steel with a protective powder-coat finish to resist corrosion and handle repeated heavy loads. Its progressive design distributes weight gains across the pack and reduces stress concentrations that cause premature wear.

• Heavy-duty steel construction with powder-coated corrosion resistance
• Progressive support for smoother load transition and durability
• Covers both on-road and light off-road duty cycles

Who is this for: The ATRACYPART 500 lb Helper Spring Kit is aimed at owners of older and modern pickup trucks, SUVs and light trailers who need extra rear support for towing, hauling gear or preventing sag when adding heavy accessories. It’s a practical solution for people wanting improved ride level and stability without replacing the factory spring pack—appropriate for DIY installers and professional shops wanting a cost-effective reinforcement backed by a 12-month warranty.