So I just had the zone 4.5" lift with the add a leaf and fox shocks on the rear as well as Bilsteins 5100 in the front on my 18 Sierra. Truck looks amazing and rides great however I just noticed the rear is much higher than the front. The front is 9.5" from the top of the tire to the bottom of the fender and the rear is 12". Is this how it's suppose to sit?