Rough Country

Rough Country 4-inch X-Series Suspension Lift System 639P

Rough Country 4-inch X-Series Suspension Lift System 639P

Rough Country

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SKU:
DHTP-639P
Now: $899.95
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Rough Country 4-inch X-Series Suspension Lift System 639P

  • Contents: Coil springs, Lwr Adj control X-Flex arms, sway bar quick discon, bumpstop spacers, Adj track bar, trans crossmbr spacers
  • Coil springs, Up control arm brkt, bumpstop exts, sway bar brkts, rear shock relocKit
  • Shocks: (4) Perform

Jeep: 99-04 Grand Cherokee WJ 4WD

  • Easy, 100% Bolt-On Installation
  • Lower joints pivot up to 35 degrees
  • Increased ground clearance
  • X- Flex adjustable control arms
  • Features application valved Premium Performance 2.2 shocks
  • Lower control arms provide proper offset to allow for wider tires
  • Kit maintains stock alignment for precise high speed handling and proper caster/pinion alignment
  • X-Flex control arm features:
  • Flex joints feature a massive 2.5in diameter body and 1.25in thread
  • Fully greasable

Rough Country's 4-inch X-Series Suspension Lift System - 639P

Kit Contents: Front: Coil springs, lower adjustable control X-Flex arms, sway bar quick disconnects, bumpstop spacers, adjustable track bar, transmission crossmember spacers, and hardware; Rear: Coil springs, upper control arm bracket, bumpstop extensions, sway bar brackets, rear shock relocation kit, and hardware; Shocks: (4) Performance 2.2 Shocks;Models equipped with CV style front drive shaft may result in drive shaft vibration - If this occurs, replacing the drive shaft, axle yoke, and/or transfer case yoke will need to be performed to rid the vehicle of driveline vibration;Manufacturer: Rough Country Suspension Systems; Part Number: 639P; Weight (Lbs): 129.18; Install Time (Hours): 6-8; Wheel Backspacing (Inches): Factory; Recommended Tire Size: 265/75

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Vitas V. Verified Customer   
04-12-25

The straight -4 JIC to 1/8 NPT adapter fittings they sent me were wrong. The ones they sent were -4 JIC to 1/8 BSP. I'm sure it was just an error made by their supplier but that doesn't change the fact that I had to waste my time and money (almost 20% of the kit cost) chasing down the correct parts. Compare the threads of the Swag fittings to that of the replacement fitting. The two close to each other are Swag and the 90 degree fitting has the correct NPT threads and matches the replacement fittings threads.

Recommend this Company
1 / 5
Cory M. Verified Customer   
04-12-25

Website easy to use and locate parts I needed

Recommend this Company
5 / 5
Steven A. Verified Customer   
04-12-25

Easy navigation on the site. Very reasonable pricing! You guys are awesome!!

Recommend this Company
5 / 5