I have a 2006 2500 Mega Cab. In stock form my truck is sitting 1. 5" lower in the front than the rear. I am about to install a Fabtech 4. 5" lift. The lift comes with 4. 5" coils and a 1" block for the rear. Seems like after that is installed I will be 2" high in the front. Am I missing something? My truck comes stock with what appears to be three chopped off leaf springs under the spring pack. Do 3500 trucks have a bigger stock block?