This ReadyLIFT 4 inch coil spring lift kit gives the 2007-2018 Jeep Wrangler JK 4 inch of front lift and comes with four new coil springs and four SST3000 shocks, so it is a complete front and rear package. It is built to keep on-road ride and handling while improving off-road capability and ground clearance, and supports 35 inch tires (37 inch with flat fenders).
Key features
- Four precision-made coil springs
- Four SST3000 gas-charged monotube shocks included
- Front and rear sway bar end links
- Rear track bar relocation bracket
- Bump stop extensions and pads for correct suspension articulation
What's included
- 4 coil springs (4 inch lift)
- 4 SST3000 shocks
- 1 rear track bar bracket
- 4 sway bar end links
- 4 bump stop extensions
- All necessary hardware
Fitment and compatibility
- Fits 2007-2018 Jeep Wrangler JK, 2-door and 4-door; ReadyLIFT lists it for 4WD
- 2012 and newer models require driveshaft and exhaust modifications. For off-road use on these models ReadyLIFT recommends the Exhaust Down Pipe Extension, 47-6310
- The kit changes axle position on solid-axle vehicles; an adjustable track bar can correct this. ReadyLIFT lists the 77-6002 Front Heavy Duty Adjustable Track Bar as an option
- Brake lines are not included
- Tires: 35x12.50 on a wheel with 4.5 inch backspacing; 37x12.50 only with flat fenders. Test fit any tire and wheel combination
Specifications
- Brand: ReadyLIFT
- Part number: 69-6401
- Front lift: 4 inch
- Max tire: 35x12.50 (37x12.50 with flat fenders)
- Shocks included: Yes, SST3000, 4 total
- Estimated install time: 6 hours, plus or minus 1 hour
Installation
Allow about 6 hours, plus or minus 1, not counting alignment or wheel and tire assembly. ReadyLIFT recommends a certified mechanic. Alignment may be needed, check headlamp aim afterward, and ADAS recalibration may be needed at extra cost.
Modifying your suspension can change handling and raise rollover and loss-of-control risk (SAE J2492). Proposition 65: ReadyLIFT lists DEHP for this product.