For Jeep Wrangler JK Unlimited 2007-2010 2WD. For Jeep Wrangler JK Unlimited 2007-2018 4WD. - Bushing:Poly bushing on the axle side. Note: not for the 2-door truck. Important notice: 1. Free 2 Year Warranty: All Specialautoparts products have 2 year warranty (unless otherwise stated).