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4-6in Jeep Long Arm Upgrade Kit

Jeep Long Arm Upgrade Kit [790]
Kit Overview
Installation Walkthrough
In stock
SKU: 790 | Brand: Rough Country
Make sure it fits!


Gain the absolute best in off-road articulation and a host of impressive features with this all-inclusive package. There are no obstacles you can't tackle with our front and rear Y-link Suspension setup featuring HUGE adjustable 2" lower control arms and X-Flex Joints. This Dual Y-link Suspension setup with longer travel arms doesn't just prevent binding and rear-steer, it gives you unparalelled axle flex while keeping pinion angles optimized - letting you negotiate trails on your terms.

The JK Long Arm Kit is built to withstand the harshes of off-road mayhem. A beefy crossmember with frame strengthening brackets gives your JK new, stronger mounting points while a 1/4" thick steel skid plate keeps everything protected from off-road hazards. This kit also includes front sway-bar disconnects and stainless steel brake lines. Read More

  • Download Instructions
  • Install Time: 8-10 hours
    Average estimated install time peformed by a professional shop or mechanic.
  • Features

  • Upgrades your short arm kit to long arm
  • Dual Y-link suspension setup with longer travel arms
  • Prevents binding and rear-steer
  • Gain unparalelled axle flex while keeping pinion angles optimized
  • HD 0.25" thick skid plate protects transmission and transfer case.
  • X-Flex control arm features:
    • Clevite brand OEM style rubber bushings.
    • Flex joints are fully rebuildable.
    • Flex joints feature a massive 2.5" diameter body and 1.25" thread.
    • Fully greasable.
    • Adjustable retainer ring.
  • Notes

  • Upgrades 4 - 6" kits ONLY.
This product features Rough Country's Lifetime Replacement Warranty. All products are warranted to be free from defects in material and craftsmanship for the life of the vehicle if utilized in accordance with the manufacturer's instructions for installation and operation of said products. For complete details and coverage information please click here.
We are proud to offer Same Day Shipping. If you place your order before 4pm (cst) your order will be shipped that day. Parts ordered must be in stock for the order to ship. Approximately 97% of all orders placed leave our warehouses within 24 to 48 hours(not including weekends & holidays). For complete details please click here.


  • Front
  • Upper adjustable control arms
  • Lower adjustable control arms
  • Sway-bar quick disconnects
  • Crossmember
  • Frame strenghening brackets
  • HD lower skid plate
  • Stainless steel braided brake lines
  • Hardware
  • Rear
  • Upper adjustable control arms
  • Lower adjustable control arms
  • Stainless steel braided brake lines
  • Hardware

Fitment Table

Years Drive Make Model
2007-20114WDJeepJK Wrangler
2007-20114WDJeepJK Wrangler Unlimited
Always check the product's overview, for more important fitment information


  1. Awesome kit for an amazingly low price - Posted by: Cody (2/9/15)

    I recently installed the 6in long arm upgrade kit on my jeep & I must say that this kit is just what I was looking for! It gave me the better ride, better flex, better steering while going down the highway & most of all it gave my Jeep the best look. It takes time installing the kit but its worth it in the end without a doubt. Thank you guys for having top quality products! Very satisfied customer & will be buying plenty of more products from you guys!

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