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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...

11 products found in Hardcore Upgrades

Adjustable Control Arms | Front Lower | Wrangler JK
  • $371.95
Brand: JKS
SKU: JKS1610

Adjustable Control Arms | Front Upper | Wrangler JK
  • $318.95
Brand: JKS
SKU: JKS1615

Adjustable Control Arms | Rear Lower | Wrangler JK
  • $371.95
Brand: JKS
SKU: JKS1660

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

Coilover Mounting Kit | Front | Wrangler JK
  • $573.95
Brand: JKS
SKU: JKS2510

FOX 2.5 Front Coilover Shocks w/ DSC | Factory Race | Wrangler JK
  • $1,587.96
Brand: FOX
SKU: FOX88406178

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

Coilover Mounting Kit | Rear | Wrangler JK
  • $567.95
Brand: JKS
SKU: JKS2519

FOX 2.5 Rear Coilover Shocks w/ DSC | Factory Race | Wrangler JK
  • $1,587.96
Brand: FOX
SKU: FOX88406177

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

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