08sixpointtwo

Hey guys a few questions. I have an 08 silverado 2dr. I just did a step notch and I don't have a clue as to which shocks to go with. I have a 6/12 drop. I'm running 265/40R22 in the rear and 265/35R22 in the front. Any other modifications needed to continue having some what of a smooth ride???? Any input greatly appreciated.