Rough Country Stock Cast Aluminum 3.25 Inch Kit I 204

FITMENT: Chevy/GMC 1500 (07-13) I Must know if factory front components (Front Lower Control Arms) are aluminum or steel.
Does NOT fit 2007 "Classic" model.
Body Lift Requires minor cutting and drilling. I A lift kit for the cost of a leveling kit? Gain enough ride height to run up to 285/75 R17 tires at a fraction of the cost of other kits with Rough Country's 3.25-inch Combo Kit for 2007-2013 GM 1500's. This unique kit combines our popular 2-inch Leveling Spacer and our 1.25-inch Body lift, giving your truck a level look with an additional boost for running larger tires. This easy to install kit features a lifetime replacement warranty and is certified FMVSS no. 126 Compliant, proven not to interfere with Electronic Stability Control feature on new model trucks.