Quadratec® Maximum Duty 2.5 Coil Spring Suspension Lift Kit with Shocks for 07-17 Jeep® Wrangler JK 2 Door
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
- Max Tire Size: 34
- Lift Height Range: 0 - 2.5 inch
- Included Parts: Brake Line Extensions, Bump Stop Extensions, Front Track Bar Bracket or Brake Line Extensions, Bump Stop Extensions, Front Track Bar Bracket, Rear Track Bar Bracket
- Features: Short Arm
Jeep Wrangler 2-Door (JK)
- 2017 Jeep Wrangler 2-Door (JK)
- 2016 Jeep Wrangler 2-Door (JK)
- 2015 Jeep Wrangler 2-Door (JK)
- 2014 Jeep Wrangler 2-Door (JK)
- 2013 Jeep Wrangler 2-Door (JK)
- 2012 Jeep Wrangler 2-Door (JK)
- 2011 Jeep Wrangler 2-Door (JK)
- 2010 Jeep Wrangler 2-Door (JK)
- 2009 Jeep Wrangler 2-Door (JK)
- 2008 Jeep Wrangler 2-Door (JK)
- 2007 Jeep Wrangler 2-Door (JK)
|Part Number||Catalog #||Option||Price|
|16400.0043||16400.0043||With Hydro 7.0 Shocks||$419.00|
|16400 0143||16400.0143||With Nitro 8.0 Shocks||$439.00|
I installed the Quadratec Maximum Duty 2.5-inch Coil Spring Suspension Lift Kit with Nitro Shocks just over a year ago on a JK with 110K miles. The installation went very well, and improved the look and ride of my vehicle. Soon after the lift kit installation the vehicle started to suffer from occasional uncontrollable front-wheel wobble, requiring me to pull-off the road and stop to get the wobble to settle. After inspection of the front-end and conversations with Jeep experts and Quadratec support, I was told the geometry change from the lift kit may be causing worn front-end parts to cause the wobble problem. The first thing we did was to have the front-end professionally inspected and aligned, the stock 17-inch alloy wheels re-balanced, and tire pressure adjusted, but the wobble persisted.
While the inspection did not reveal any blatantly worn components, the mechanic recommended refreshing the front-end, as high-mileage Jeeps are notorious for wobble problems, and even slightly worn ball joints, tie-rods, and steering components can cause problems on lifted Jeeps. I next installed a new steering stabilizer and JKS track bar. Removing the OE track bar revealed the axle side mounting bolt hole had "ovaled" out from wear. I drilled out the bolt hole and new JKS track bar end to the next size bolt, and installed a grade-8 bolt. I was able to install and adjust the new track bar and get a nice tight fit, but the wobble still occurred occasionally.
Now in a quest to build a "Bullet-Proof" non-wobbling front-end, the next step was to install Synergy ball joints. Jeep experts told me the OE ball joints are of poor design quality, and should always be replaced before 100K miles, especially when lifting an older JK. With new ball joints installed I tested the vehicle, only to find that the wobble still occurred very occasionally.
The next items installed was a JKS Drag Link Flip Kit, tie-rod ends, and a pair of JKS Sway Bar Quick Disconnects. Once these parts were in place and adjusted, I tested the JK for wobble. After several on and off-road miles, I have been unable to recreate the wobble under any circumstance. I believe the problem has been resolved by changing to the much flatter angle on the drag link.
The moral to this story is; the Quadratec 2.5-inch lift is very good quality and a good value, but if you are lifting an older JK, you may want to consider one of Quadratec's more comprehensive lift kits that compensate for the geometry changes in the front-end.