JKS Manufacturing - JSPEC Suspension Systems
Select a Sub-Category
JSPEC Suspension Systems Featured Products
More About JSPEC Suspension Systems
JSPEC™ Suspension Systems manufactured by JKS Manufacturing
Each JSPEC™ Suspension system is designed with you in mind with top quality components working together in unison for exceptional performance on any terrain.
JKS Manufacturing is no stranger to Jeep® suspensions. With 25 years in the business, we have been engineering high qualityJeep® solutions since 1989 with the development of the original swaybar disconnect, a simple yet innovative solution to improving offroad capability by increasing wheel travel. Over the years the goal hasn't changed as JKS's team of engineers and enthusiasts continue to develop components to improve the performance and capability of Jeep® vehicles introducing some of the worlds most widely used and respected products. To this day, JKS components are being utilized throughout the industry as a top-quality supplementary solution to many of the inherent flaws with other suspension systems in the goal to improve the performance, handling, and offroad capability. The quality and adaptability have made JKS a premier choice among Jeep® owners.
The trial-and-error process of choosing individual components can be incredibly frustrating and far more expensive than selecting the right parts from the beginning. JKS Manufacturing set out to develop a full line of suspension systems, reinventing the idea of incomplete pieced together component kits and developing complete, easy to install systems. After many years of development, testing and fine-tuning, JKS Manufacturing is proud to announce the release of the JSPEC™ Suspension line, offering true dual purpose suspension solutions engineered to provide premium on road comfort with unrivaled offroad capability.
JSPEC™ Suspension launches with complete suspension systems designed specifically for 2007-2017 Jeep® Wrangler and Wrangler Unlimited JKs and 1997-2006 Jeep® Wrangler TJs. Systems are ready to install right out of the box and feature detailed step-by-step instructions along with video tutorials to guide you through the process. Each package can be further customized to suit your individual performance requirements with optional accessories designed by JKS for JSPEC™. Every JSPEC™ Suspension package delivers exceptional value and is backed by American quality, workmanship and the JKS Lifetime Limited Warranty.
JSPEC™ Suspension by JKS products deliver American Ingenuity and Workmanship to consumers without compromising performance or dependability. JSPEC™ Suspension by JKS are comprised of JKS Manufacturing components, the best and most trusted Jeep® accessories in the industry.
The JSPEC™ Suspension by JKS represents Jeep®-specific engineering at its best. With more than 60 years of combined experience centered around this iconic 4WD legend, our expert team of industry specialists understand the Jeep® lifestyle inside and out.
While many of our competitors are having their products produced overseas, we remain committed to manufacturing and assembling every JSPEC™ Suspension product here at home. When we say that JSPEC™ Suspension products are "Made in USA", that is exactly what we mean.
JSPEC™ Suspension is Simply Superior
Right from the start, every JSPEC™ Suspension by JKS product is designed for trouble-free operation and dependable performance. We strive for elegant simplicity because unexpected complications can quickly turn any adventure into a disaster.
JSPEC™ Suspension by JKS products are always developed to enhance the Jeep® ownership experience. Our customers rely on their vehicles for so much more than off-road performance and we guarantee our products to excel in all environments.
FMVSS No. 126 Certified
Meets or exceeds D.O.T. FMVSS no. 126 Regulations, where applicable. Drive on pavement to and from the trails with confidence knowing that JSPEC™ Suspension by JKS have been thoroughly tested and proven not to interfere with Jeep® stability control systems…Simply Superior!
J-Rated™ Suspension Systems by JKS Manufacturing
JKS's Jspec Suspension Systems are engineered to a higher standard, built to improve offroad capability without sacrificing on-road comfort, handling or overall vehicle performance. JKS is excited to now introduce J-Rated. Designed around the ever-popular 1-10 trail rating system used at off road destinations across the nation, these new kit classifications offer the ability to find the suspension package that is right for you and your Jeep. Using an honest assessment of how you use your Jeep and the trails you like to tackle, you can now get a system designed specifically for your intended usage. You provide the Jeep and the terrain, we provide a complete system to tackle it. No guesswork, no internet engineering, just the right product for your Jeep and how you use it.
This system is designed for those who use their Jeep mildly, but still use it as a Jeep. Easy to moderate trails, on road driving experience the same or better than factory. Correct geometry, great ride and drive quality. Don’t be fooled, this system will tackle the terrain too. This system is best used on trails rated 1-5, these are going to be fire roads, 2-track trails, sand dunes, rutted surfaces, ledges in the 24” range, water crossings around 12” deep and trails rated in the 1-5 range. Easy install, low maintenance OE style bushings, adjustable track bar in the front, and the performance gains from Quicker Disconnect Sway bar links. Factory front drive shaft remains.
All the same features of the 1-5 systems, but we are upping our game with some fixed length lower control arms front and rear to help correct caster, and provide much needed strength for when we are hitting those harder trails. Factory front drive shaft remains
Now we are getting serious. This system is designed for the daily driver that likes the thrill and the challenge of some of the higher rated trails on the weekend. We are talking All the components of the 1-5 system, but we have added adjustable upper and lower control arms front and rear, to not only provide additional strength and correct geometry, but also to aid in some additional articulation. Speaking of articulation, this system includes some serious shocks in the travel department. You will need an aftermarket front driveshaft to handle the extreme flex, as we are well past what the factory unit can handle. Why do we need all this flex? This system is designed to handle trails in the 5-7 rating, which means we are going to see 48” ledges, steep inclines and declines, and some pretty serious off-camber situations. These are difficult yet fun trails, and this system lives for those moments and will keep clawing for more.
Here is where things get nasty! All of the 5-7 components, but we are stepping it up in a big way with 12” travel, FOX Factory Race series, 2.5” dimeter coil overs front and rear with the DSC adjusters. The JKS manufacturing bolt in coil over conversion brackets will allow for full use of these race style coil overs, and the end user will have all of the benefits of adjustable coil over suspension. Again, due to the extreme travel of this system, an aftermarket front driveshaft will be required, but when you are tackling trails rated 7+, those factory units are not going to last long anyway!!