Product Filter

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

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

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

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

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

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

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

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