I have a 2002 F150. The previous owner installed a "leveling" kit. However, the front rides higher than the rear, by about 2". The rear has 2" blocks, front was lifted with spindles. In order the get the stance back to even close, I either have to lift the rear more or replace the spindles. I think I'm leaning towards larger blocks on the rear. My question is, will I need different shocks for the rear? I was looking at Rancho 5000, they for 0-4" lift.