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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...

71 products found in Hardcore Upgrades

3.5" Lift Kit | J-Krawl | Wrangler JK 4-Door
  • From $2,727.50
Brand: JKS
SKU: JSPEC151KFA

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

Adjustable Control Arms | Rear Lower | Gladiator JT
  • $371.95
Brand: JKS
SKU: JKS1662

3.5" Lift Kit | J-Krawl | Wrangler JL 4-Door
  • From $2,834.45
Brand: JKS
SKU: JSPEC128KFP

Adjustable Control Arms | Rear Upper | Gladiator JT
  • $318.95
Brand: JKS
SKU: JKS1667

Adjustable Control Arms | Rear Upper | Wrangler JL
  • $334.95
Brand: JKS
SKU: JKS1666

J-Link Adjustable Control Arms | Front Upper | Wrangler JK
  • $325.95
Brand: JKS
SKU: JKS1633

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

FOX 2.5 IFP Front Shock - Single | Performance Series | 2-3.5" Lift | Jeep Wrangler JL
  • $259.00
Brand: FOX
SKU: FOX98624154

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

J-Link Adjustable Control Arms | Rear Upper | Wrangler JK & JL
  • $399.95
Brand: JKS
SKU: JKS1639

Adjustable Control Arms | Rear Lower | Wrangler JL
  • $371.95
Brand: JKS
SKU: JKS1661

J-Link Adjustable Control Arms | Front Lower | Wrangler JK
  • $399.95
Brand: JKS
SKU: JKS1631