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Correct Rear Spring Bow on Your Lifted Jeep Wrangler JK
The RK02659 Rear Lower Coil Spring Correction Wedges are designed to correct the bowing that develops in the rear coil springs of a lifted Jeep Wrangler JK or JKU. By repositioning the base of the spring, the RK02659 wedges reduce bow, help prevent the coil spring from contacting the rear track bar, and restore a more effective spring rate for better ride quality both on road and on the trail.
Key Features
- Corrects rear coil spring bow caused by lift kits
- Helps eliminate rear coil spring contact with the track bar
- Improves handling by restoring effective rear spring rate
- Constructed from durable polyurethane for long service life
- Bolt on installation with no drilling or cutting required
- Sold as a pair for both sides of the rear axle
Fitment
| Year Range | Make | Model |
|---|---|---|
| 2007-2018 | Jeep | Wrangler JK |
| 2007-2018 | Jeep | Wrangler JKU |
Specifications
| Detail | Value |
|---|---|
| MPN | RK02659 |
| Brand | Rock Krawler |
| Material | Polyurethane |
| Color | Black |
| Install Location | Rear |
| Install Method | Bolt On |
| Adjustable | No |
| Warranty | 1 Year Limited |
What's Included
- (2) Rear Lower Coil Spring Correction Wedges (RK02659)
About Rock Krawler
Rock Krawler Suspension has engineered off road suspension systems for the Jeep Wrangler platform for decades. The RK02659 wedges are built to complement Rock Krawler lift systems and factory style coils alike, helping every JK owner dial in proper spring geometry.
Related Parts
- Rock Krawler 07-18 Jeep Wrangler JK/JKU High Clearance Adj. Rear Lower Control Arms
- Rock Krawler 07-18 Jeep Wrangler JK/JKU Double Adjustable Rear Upper Control Arms
- Rock Krawler 07-18 Jeep Wrangler JK/JKU 1.5-3.5in Lift Rear Adjustable Track Bar
FAQ
What is the RK02659?The RK02659 is a pair of rear lower coil spring correction wedges for the 2007 to 2018 Jeep Wrangler JK and JKU designed to correct spring bow after a lift installation.
Do I need these wedges if I install a Rock Krawler lift kit?If a Rock Krawler rear coil spring is not already paired with correction wedges, this kit is recommended to keep the spring properly seated and reduce bow.
What problem do these wedges solve?They correct the bowing that occurs in rear coil springs after a lift, which can otherwise cause the spring to rub against the rear track bar and lose effective spring rate.
Will these wedges add additional lift height?No. The wedges are designed to straighten spring geometry rather than add ride height.
What material are the wedges made from?They are made from durable polyurethane designed to hold up under repeated suspension cycling.
How long does installation take?Most installers can complete the job in about twenty to thirty minutes per side with the vehicle safely supported.
Are both wedges the same size?Yes, both wedges included in the kit are the same size and can be installed on either side of the rear axle.
What is the warranty on this kit?Rock Krawler backs this kit with a 1 Year Limited Warranty.
Install Instructions
- Raise the rear of the Jeep and support it on jack stands at the frame rails
- Lower the rear axle using a jack until spring tension is released
- Remove the rear coil spring from the perch
- Position the wedge on the axle spring perch, aligning the locating tabs
- Reinstall the coil spring on top of the wedge, seating it fully
- Repeat the process on the opposite side
- Slowly raise the axle back into position and remove the jack stands
- Lower the vehicle and inspect spring alignment and track bar clearance before driving
Proposition 65 Warning
This product can expose you to chemicals which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
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