JKS

About JKS Manufacturing

Since 1989, JKS Manufacturing has been one of the most respected names in Jeep suspension engineering. Founded and headquartered in Coldwater, Michigan, the brand built its reputation on a simple but powerful idea: Jeep owners deserve suspension components that are as tough and capable as the trails they tackle. Decades later, JKS continues to deliver on that promise with a catalog of precision-engineered off-road parts trusted by Wrangler and Gladiator owners around the world.

JKS got its start by pioneering the Quick Disconnect™ sway bar disconnect system — a product that fundamentally changed how Jeep enthusiasts approach articulation and on-road handling balance. Rather than choosing between trail flex and highway stability, drivers could have both. That spirit of smart, practical engineering has defined every product line JKS has developed since.

Engineered for Jeep, Built to Last

Today, JKS offers a comprehensive range of suspension solutions purpose-built for Jeep platforms. Among their most celebrated innovations is the ACOS™ (Adjustable Coil Over Spacer) system, which gives owners a simple, reliable way to dial in ride height without a full suspension overhaul. For drivers looking for a more complete transformation, the J-Spec Suspension systems deliver an integrated approach to lift, geometry correction, and ride quality — all engineered to work together as a system rather than a collection of individual parts.

When it comes to suspension track bars, JKS sets the bar high. Their track bar upgrades are designed to correct the geometry shifts that come with a lifted Jeep, reducing the death-wobble risk and restoring precise steering feel that stock components simply can't maintain at lifted ride heights. These are among the brand's top-selling and most highly regarded products.

For enthusiasts who want a more comprehensive upgrade, JKS suspension lift kits offer engineered packages that take the guesswork out of building a capable Jeep. Rather than mixing and matching components, JKS lift kits are validated as complete systems, ensuring proper fit, geometry, and performance across the entire suspension.

Rounding out their core lineup, JKS suspension control arms address the caster and pinion angle corrections critical to any serious lift installation. Built from high-strength materials and featuring adjustable geometry, these arms help ensure that a lifted Jeep drives as well on the pavement as it performs on the trail.

Why Jeep Enthusiasts Trust JKS

• Over 35 years of dedicated Jeep suspension expertise
• American engineering rooted in real-world off-road performance
• Innovative product lines like Quick Disconnect™, ACOS™, and J-Spec Suspension
• Comprehensive fitment coverage for Wrangler, Gladiator, and other Jeep models
• Components engineered to work together as integrated systems

Whether you're building a weekend trail rig or simply looking to correct the geometry on a mildly lifted daily driver, JKS Manufacturing offers solutions that reflect decades of focused, hands-on Jeep suspension development.