Rock Krawler kit component boxes for 2007–2018 Jeep Wrangler JK 2-door describe the 3.5-inch X-Factor X2 long-arm with a 6-inch rear stretch. This comprehensive kit component reference covers the extended X-Factor X2 long-arm geometry plus the additional rear stretch needed for JK 2-door builds. It’s intended for substantial suspension modifications that require the longer rear spacing and Rock Krawler drivetrain alignment.
Rock Krawler 07-18 Jeep Wrangler JK 2DR 3.5in X Factor X2 Long Arm w/ 6in Rear Stretch