JKS Manufacturing 07-18 Jeep Wrangler JK 4dr 3.5in Coil Box Kit

If you're looking to give your 2007-2018 Jeep Wrangler JK 4-door a noticeable lift and improved ride quality, this set of JSPEC™ dual rate coil springs from JKS Manufacturing is a solid option. These springs are designed to raise your Jeep by 3.5 inches, giving you more ground clearance for off-road adventures and allowing for larger tires. The dual rate design is key here; it means you get a comfortable, smooth ride on the pavement, but when you hit rougher terrain and your suspension starts working harder, the springs transition to a firmer rate. This helps maintain better vehicle control when you're out exploring.

Beyond just the lift, these springs are also longer than stock. This extra length is important because it allows you to fit longer shock absorbers, which in turn gives you more wheel travel. Whether you're packing for a long trip, hitting the trails for some serious crawling, or just heading out with friends, these JSPEC™ coils aim to deliver the ride you want and the performance you need. They're a well-built set that addresses both on-road comfort and off-road capability.