Quadratec Maximum Duty 2.5" Coil Spring Suspension Lift Kit for 07-18 Jeep Wrangler Unlimited JK 4 Door
Quadratec's Maximum Duty 2.5" Coil Spring Suspension kit provides the perfect blend of affordable parts and rugged, effective suspension. This kit passed the FMVSS 126 tests, and it easily works with the vehicle's electronic stability control system. Plus, it accommodates up to 34" tires without an issue. The system's progressive rate coil springs offer maximum travel and will keep you driving off-road comfortably. These Quadratec shocks also come with a choice of Hydro 7.0 or Nitro 8.0 shocks for greater comfort and driveability. Even sudden bumps and potholes during an off-road adventure are no match for this complete system. You’ll need a moderate amount of know-how to install this system, but it comes with everything you need to swap out of that outdated suspension system. Additionally, enjoy the peace of mind of a limited lifetime warranty. Your Jeep Wrangler JKU will feel like a whole new ride thanks to the Quadratec Maximum Duty 2.5" Coil Spring Suspension Kit.
Many states have laws that limit the maximum height of a lifted vehicle. Never exceed the legal height limit.
Excellent Coil Springs: This suspension kit comes with heavy-duty coil springs, which offer maximum travel. You won’t have to worry about handling on your off-road expeditions.
Multiple Shock Options: Choose from the Hydro 7.0 or the Nitro 8.0 options. Whether you need maximum shock absorption or a mid-range choice, these shocks are efficient and fully compatible with most Jeep Wrangler JK models.
Limited Lifetime Warranty: Keep your Jeep on or off the road for its entire lifetime. This kit is backed by a limited lifetime warranty, so you won’t have to worry about what comes next should something happen to a part.
Easy Installation: With a few basic skills, you’ll be able to install this kit. There’s lots of great instructions available, including all the details you need to get you back on the trail.
Complete Kit: One-stop shopping at its best. This kit comes with all the parts and accessories you need to install in most Jeep Wrangler Unlimited JK models. You won’t have to make a last-minute run to the store with this convenient kit.
Front Coil Springs
Rear Coil Springs.
Front Bump Stop Extensions
Rear Bump Stop Extensions
Front Shock Absorbers with Boots
Rear Shock Absorbers with Boots
Rear Track Bar Re-alignment Bracket
Front Brake Line Brackets
Rear Brake Line Brackets
- Shocks Included: With Shocks or Without Shocks
- Max Tire Size: 34
- Lift Height Range: 0 - 2.5 inch
- Included Parts: Brake Line Extensions, Bump Stop Extensions, Front Track Bar Bracket, Rear Track Bar Bracket
- Features: Short Arm
Jeep Wrangler Unlimited 4-Door (JK)
- 2018 Jeep Wrangler Unlimited 4-Door (JK)
- 2017 Jeep Wrangler Unlimited 4-Door (JK)
- 2016 Jeep Wrangler Unlimited 4-Door (JK)
- 2015 Jeep Wrangler Unlimited 4-Door (JK)
- 2014 Jeep Wrangler Unlimited 4-Door (JK)
- 2013 Jeep Wrangler Unlimited 4-Door (JK)
- 2012 Jeep Wrangler Unlimited 4-Door (JK)
- 2011 Jeep Wrangler Unlimited 4-Door (JK)
- 2010 Jeep Wrangler Unlimited 4-Door (JK)
- 2009 Jeep Wrangler Unlimited 4-Door (JK)
- 2008 Jeep Wrangler Unlimited 4-Door (JK)
- 2007 Jeep Wrangler Unlimited 4-Door (JK)
Quadratec Maximum Duty 2.5" Coil Spring Suspension Lift Kit Options
| Part Number | Catalog # | Shock Options | Price | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 16400-0044 | with Hydro 7.0 Shocks | $660.95 | |||||||
| 16400-0144 | With Nitro 8.0 Shocks | $692.95 | |||||||
| 16400 0006 | 16400-0006 | without Shocks | $464.99 |
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Quadratec Maximum Duty 2.5" Coil Spring Suspension Lift Kit Reviews
I got 3” of lift with this but I expect it to settle (anvil JKU in pics). Drilling, pressing the rear bushing tops w mounting hardware, and getting the hardware on the passenger/front shock top were the most time consuming. Relatively easy other than that - and it was my first time. We’ll see how it does on the drives.
Not much of a change in height visually but definitely noticeable when sitting next to factory suspension. Gives it just enough lift to bolster its look without getting crazy. Adding bumpers and winch so I wanted a bit more clearance. My Jeep is really just a daily commuter with occasional off road jaunts. Install was a first time endeavor and took 8 hours. Only real issue was front track bar. Might want an adjustable one but seems fine with factory one. Will check again after bumpers and with are installed.
Great lift kit, easy install. I did the install by myself in about 3 hours on a 99 TJ. Had to cut my stock front shocks off but other than that everything was straight forward and easy just like the instructions say. I was hoping for a better ride, and it may settle in and ride better as time goes by but initially it is stiff and the rear is a little bouncy, like it springs up off bumps to the point of fully extending the shocks. By my measurements the 2.5" lift gave me about 3.25" of lift from stock. I attribute part 9f that to my stock suspension sagging and part (hopefully) to the lift springs being new and have no sag yet. I do have a bit of driveline vibration that was not there before. I am going to leave it for a couple months to see 8f the springs settle and sag some before trying to correct it. The tabs the directions say to know out for the rear control arms axle mount are all but impossible to just knock out. I used a drill to slot them. Overall a quality kit with good instructions. I got the Nitro shocks, I'm sure better shocks would improve the ride.
