Jeep Wrangler 07-18 3.8L/3.6L
JSPEC2350
Overview:
The JKS Manufacturing JSPEC 3.5-inch Dual Rate Coil Springs Kit is engineered to enhance your Jeep’s clearance, ride quality, and off-road capability. Designed specifically for Jeep Wrangler models from 2007 to 2018 and Jeep Grand Cherokee models from 2005 to 2010, this kit includes both front and rear coil springs to provide a balanced 3.5-inch lift. Whether you’re tackling rugged trails or cruising city streets, these springs deliver a smooth, comfortable ride on-road while firming up off-road for improved vehicle control and stability.
Ideal for Jeep enthusiasts who demand versatility, the JSPEC coil springs adapt to varying terrain and load conditions, making them perfect for everything from daily driving to serious off-road adventures. Their longer overall length also allows the use of longer shocks, increasing wheel travel and suspension articulation for enhanced performance.
Key Features:
JKS JSPEC coil springs combine innovative design with durable construction to meet the demands of Jeep owners seeking both comfort and capability:
Construction & Design:
JKS Manufacturing builds the JSPEC coil springs using high-quality steel alloys and precision engineering to ensure durability and consistent performance. The dual rate design features variable coil spacing and thickness, allowing the springs to compress progressively. This means the springs provide a softer initial rate for comfort during normal driving and transition to a firmer rate under heavier loads or rough terrain, improving stability and control.
The springs are powder-coated for corrosion resistance, ensuring long-lasting protection against the elements. Their robust construction supports extended use in demanding off-road conditions without sagging or loss of performance.
Installation & Fitment:
The JSPEC 3.5-inch Dual Rate Coil Springs Kit is designed as a direct fit replacement for the front and rear springs on compatible Jeep Wrangler JK Unlimited and Grand Cherokee models. Installation typically requires standard suspension tools and moderate mechanical skill. No major modifications are necessary, but professional installation is recommended to ensure proper alignment and suspension geometry.
These springs are compatible with factory shocks as well as aftermarket longer shocks, which are recommended to maximize wheel travel and suspension articulation after the lift.
What's Included:
Ideal For:
The JKS JSPEC Dual Rate Coil Springs Kit is perfect for Jeep owners who want a reliable lift that improves off-road capability without sacrificing on-road comfort. Whether you’re loading your Jeep for extended expeditions, navigating rocky trails, or simply seeking a more aggressive stance and improved clearance, these springs deliver versatile performance for daily driving and weekend adventures alike.
JKS Manufacturing builds Jeep and off-road suspension parts—lift systems, control arms, track bars, disconnects, and supporting hardware—engineered for articulation and durability. It’s a popular choice for Wrangler and Gladiator owners looking to improve clearance, ride quality, and capability for real trail use.
ETA stands for Estimated Time of Arrival. The date shown is calculated using our Available-to-Promise (ATP) system, which tracks real-time supplier commitments to determine when a product is expected to be available for delivery. Specifically, the date is calculated by adding 9 business days from the date a supplier has committed to ship the product, representing a worst-case scenario for when we can expect to receive inventory.
Please note: The ETA is an estimate, not a guarantee. While we work closely with our suppliers to keep dates as accurate as possible, delays due to shipping carriers, weather, customs, or supplier-side issues may occasionally push the actual arrival beyond the date shown. Likewise, inventory may arrive sooner than the ETA in many cases. If you would like to be notified for when this item arrives, sign up for our back in stock notifications!
JKS Manufacturing JSPEC2350 Jeep Wrangler 07-18 3.8L/3.6L JKS Manufacturing JSPEC 3.5in Dual Rate Coil Springs Kit (F&R). Enhance your ride with JKS JSPEC™ 3.5" dual rate coil springs designed for improved clearance, performance, and ride quality. This kit includes matching front and rear springs for a level 3.5" lift, offering a smooth on-road ride and firmer off-road control. Longer springs allow for extended shock travel, perfect for loaded expeditions or light rock crawling. Experience balanced comfort and capability tailored for Jeep enthusiasts seeking versatile suspension upgrades.
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Jeep Wrangler 07-18 3.8L/3.6L
JSPEC2350
Overview:
The JKS Manufacturing JSPEC 3.5-inch Dual Rate Coil Springs Kit is engineered to enhance your Jeep’s clearance, ride quality, and off-road capability. Designed specifically for Jeep Wrangler models from 2007 to 2018 and Jeep Grand Cherokee models from 2005 to 2010, this kit includes both front and rear coil springs to provide a balanced 3.5-inch lift. Whether you’re tackling rugged trails or cruising city streets, these springs deliver a smooth, comfortable ride on-road while firming up off-road for improved vehicle control and stability.
Ideal for Jeep enthusiasts who demand versatility, the JSPEC coil springs adapt to varying terrain and load conditions, making them perfect for everything from daily driving to serious off-road adventures. Their longer overall length also allows the use of longer shocks, increasing wheel travel and suspension articulation for enhanced performance.
Key Features:
JKS JSPEC coil springs combine innovative design with durable construction to meet the demands of Jeep owners seeking both comfort and capability:
Construction & Design:
JKS Manufacturing builds the JSPEC coil springs using high-quality steel alloys and precision engineering to ensure durability and consistent performance. The dual rate design features variable coil spacing and thickness, allowing the springs to compress progressively. This means the springs provide a softer initial rate for comfort during normal driving and transition to a firmer rate under heavier loads or rough terrain, improving stability and control.
The springs are powder-coated for corrosion resistance, ensuring long-lasting protection against the elements. Their robust construction supports extended use in demanding off-road conditions without sagging or loss of performance.
Installation & Fitment:
The JSPEC 3.5-inch Dual Rate Coil Springs Kit is designed as a direct fit replacement for the front and rear springs on compatible Jeep Wrangler JK Unlimited and Grand Cherokee models. Installation typically requires standard suspension tools and moderate mechanical skill. No major modifications are necessary, but professional installation is recommended to ensure proper alignment and suspension geometry.
These springs are compatible with factory shocks as well as aftermarket longer shocks, which are recommended to maximize wheel travel and suspension articulation after the lift.
What's Included:
Ideal For:
The JKS JSPEC Dual Rate Coil Springs Kit is perfect for Jeep owners who want a reliable lift that improves off-road capability without sacrificing on-road comfort. Whether you’re loading your Jeep for extended expeditions, navigating rocky trails, or simply seeking a more aggressive stance and improved clearance, these springs deliver versatile performance for daily driving and weekend adventures alike.
JKS Manufacturing builds Jeep and off-road suspension parts—lift systems, control arms, track bars, disconnects, and supporting hardware—engineered for articulation and durability. It’s a popular choice for Wrangler and Gladiator owners looking to improve clearance, ride quality, and capability for real trail use.
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
