Rock Krawler 2.5-inch X-Factor Lift Kit - Jeep Wrangler JKU 4-Door

Vehicle fitment

Rock Krawler 2.5-inch X-Factor Lift Kit - Jeep Wrangler JKU 4-Door brings a bolt-in mid-arm suspension system to 2007–2018 Jeep Wrangler JKU 4-door 4WD gas models, including Sport, Sahara, Willys and Rubicon. Fits 2007–2011 3.8L V6 and 2012–2018 3.6L V6 applications with the correct door-specific part number. Not for two-door JK, JL/JLU or Gladiator JT.

Choose your shock package

• No Shocks, Bilstein 5100 Shocks, or RRD 2.25-inch IFP Shocks.
• No-shock kits do not include shocks or bump stops; Rock Krawler lists RK07123 bump stops separately.
• Both shock-equipped packages include their selected shocks and bump stops.

Shared system components

• 4 triple-rate coil springs
• 2 front high-clearance adjustable lower control arms
• 2 front adjustable upper control arms
• 1 adjustable front track bar
• 2 quick-disconnect front sway-bar links
• 2 rear high-clearance adjustable lower control arms
• 2 rear adjustable upper control arms
• 2 rear spring pads
• 2 adjustable rear sway-bar links
• 1 bolt-on rear track-bar relocation bracket
• Front and rear extended brake lines
• 1 adjustable rear track bar

Wheel and tire fitment

• Manufacturer recommends 4.5-inch wheel backspacing with 33/35-inch tires, or 3.5-inch backspacing with 37-inch tires.
• Manufacturer lists 33/35-inch tires with full OEM fenders and 37-inch tires with flat fenders. Clearance depends on the complete build, wheel, tire and travel setup.

Installation and build notes

• Lift-height references are based on a Rubicon with a front bumper/winch, rear bumper and full-size spare.
• Manufacturer recommends 1-inch less rear coil lift height for spare-delete builds, or 1-inch more for heavily loaded rear/overland builds.
• An upgraded front driveshaft is recommended for routine off-road use; it is a separate purchase, not a blanket requirement for every build.

Image and ordering notes

Representative manufacturer image shows a shock-equipped example. Package contents follow the selected manufacturer part number. Supplier availability and freight arrangements require confirmation; no dispatch date is promised.

Manufacturer installation guides