4WD mastery and leadership - it has always been at the core of the Jeep® brand. The next-generation Selec-Trac® II 4WD transfer case is always active so you'll be ready for rocks or mud and anything in-between. The full-time system still has the traditional 2WD High, 4WD AUTO, and 4WD-low (4LO) operation modes. Available skid plates help protect six vital underbody components from the unexpected.