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Dominate gnarly obstacles and conquer extreme terrain with hardcore suspension from JKS. Engineered systems and upgrades deliver maximum articulation, durability, adjustability, and clearance.

The range of products includes turn-key suspension systems, custom-tuned JSPEC and FOX shocks and FOX coil-overs, HD track bars and control arms, sway bar disconnects, coil-over mounting kits, and a lot more. JKS engineers its "Go Anywhere" attitude into components that help you push your adventures to extreme levels. 

Here are a few categories to get you started...

10 products found in Hardcore Upgrades

Front Adjustable Coil Spacer | ACOS | Wrangler TJ & LJ, Cherokee XJ, Comanche MJ, Grand Cherokee ZJ
  • $276.95
Brand: JKS
SKU: JKS2200

Front Adjustable Coil Spacer with Bump Stop | ACOS | Wrangler JL and Gladiator JT
  • $297.95
Brand: JKS
SKU: JKS2211

Rear Adjustable Coil Spacer| ACOS | Wrangler JL
  • $397.95
Brand: JKS
SKU: JKS2571

Adjustable Coil Spacer with Bump Stop | ACOS Pro | Wrangler TJ & LJ, Cherokee XJ, Comanche MJ, Grand Cherokee ZJ
  • $938.95
Brand: JKS
SKU: JKS2700

Front Adjustable Coil Spacer | ACOS | Wrangler JK
  • $297.95
Brand: JKS
SKU: JKS2210

Rear Coil Spring Retainer | Wrangler JK
  • $37.95
Brand: JKS
SKU: JKS1600

Rear Adjustable Coil Spacer| ACOS | Wrangler JK
  • $397.95
Brand: JKS
SKU: JKS2570

Front Adjustable Coil Spacer with Hydraulic Bump Stop | ACOS Pro | Wrangler JL and Gladiator JT
  • $901.95
Brand: JKS
SKU: JKS2711

Rear Adjustable Coil Spacer | ACOS | Wrangler TJ & LJ
  • $276.95
Brand: JKS
SKU: JKS2550

Front Adjustable Coil Spacer Pro | Wrangler JK
  • $901.95
Brand: JKS
SKU: JKS2710