Description
Comparison points and tradeoffs
When comparing Rough Country 4′ X-Series Lift Kit for 99-04 Jeep Grand Cherokee WJ | V6-639P with other Body & Suspension Lift Kits options, use this source-backed detail as the primary discriminator: Manufacturer Part Number: 639P.
Use this second fact to evaluate the tradeoff: Category: Replacement Parts / Shocks, Struts & Suspension / Chassis / Body & Suspension Lift Kits. A third point to compare across alternatives is: Special Features: Does NOT fit AWD models., Does NOT fit V8 models.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
| Brand | Rough Country |
|---|---|
| Auto Part Position | Driveline |
| Material | rubber |
| Included Components | Lift Kit |
| Maximum Lifting Height | 4 Inches |
| Manufacturer | Rough Country |
| UPC | 843030129507 |
| Model | Rough Country 4″ X-Series Lift Kit for 99-04 Jeep Grand Cherokee WJ | V6 – 639P |
| Item Weight | 127.2 pounds |
| Product Dimensions | 10 x 10 x 10 inches |
| Item model number | 639P |
| Exterior | Painted |
| Manufacturer Part Number | 639P |
| Special Features | Does NOT fit AWD models., Does NOT fit V8 models. |
| Safety Rating | Doesn’t Fit AWD . |
| Construction | Drilling Required: No |
Increased ground clearance 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. Rear shock relocation keeps shocks clear from the tires Backed by Rough Country’s Lifetime Replacement Warranty
Source product highlights
About this item
- Give your Grand Cherokee WJ the Perfect Blend of Performance, Protection, and Style from Rough Country.
- Unmatched Ground Clearance | Premium N3 Shock Absorbers the Best in Performance for On and Off-Road Use.
- Control Arms | Proper Offset allows Wider Tires | Clevite OEM Style Rubber Bushings.
- Rear shock relocation keeps shocks clear from the tires
- Backed by Rough Country’s Limited Lifetime Replacement Warranty.




louis h. seegers jr. –
This is the exact kit I put in my 01 Grand Cherokee. Easy install, and looks and drives awesome. Only complaint I have is because of the lack of rubber bushings in lower control arms you hear and feel every bump, no shock absorption in steel joints. On the plus side, they don’t sway or give out like rubber though. Be prepared though, It doesn’t drive like stock any more, use to drive like a car. To be expected in a lifted truck.All In all, I’d do it again.
Jerry Rasmussen –
I’ve had a couple of different lifted vehicles including Ranco and Iron Rock. This is by far the worst. Its not really good for off roading, just a lifted look only. My Jeep WJ, sways tremendously with this kit on. Every time I go over a bump or turn the entire vehicle body sways around the frame like a bobble head toy. Don’t plan on going over 60 mph on the freeway. Highway hazard. Shocks are lowest quality you can buy and went out after a year. 1 totally collapsed. Springs are not stiff at all and add to the swaying. I would steer away from this kit.
Ty –
I bought this lift directly from rough country and wish I would’ve spent the extra money at first for the Clayton long arm or something with bilstein shocks and different coils. The shocks dampened but didn’t allow for a smoother ride, the coils were very stiff and rusted and sagged within a year from mild off-roading, a shock exploded through the seal from some lighter off-roading, all the shocks started to rust within a year, the lower control arm ball joints wore and got play in them and began knocking over bumps despite being greased every month, the powder coat started rusting within a year, and the poly bushings started tearing and getting holes in them after a year. Some of the good things this lift has to offer is it gets you lifted fast and cheap and the swap bar disconnects are well made and held up to this day. I would definitely recommend another lift for the long run because you would end up spending more time and money in the long run maintaining a lift that performs worse than stock.
Tristin riesebosch –
Missing parts been almost 2 weeks so resolution no refund notging I will not be dealing with this again
Justin Brashers –
The only thing I have a issue with is the shocks
Jonathan Howell –
Easy install.
Producto con buena presentación –
Fácil instalación, en manual de instalación es fácil de interpretar, seria bueno una versión en español. los bushing metálicos para la tornilleria se pudiese mejorar.. la camioneta se conduce bien y la sensación es agradable al manejar
XJ –
Came with everything to install, it was simple to install
Aleksandra I-K –
Your kit will sag and lose its height in a few months to 1 year. Spend a little more and get a good kit from IRO