Well I had the 5100 installed, went with the highest setting, Truck sets 1/4" higher in the rear then the front Then I took it to the Dodge dealer and got my recall for outer tire rods done and they did a full alinement. This saved me from have to have this done. While I was at the dealer waiting for the service work to be done I went to the parts department and asked what it would cost for the parts to make my 355 in to a LS rear. They told me that it would be a complete unite to bolt in. This is for the part only, they quoted me 952.00 + tax. I know that some of you have said you got the parts for around 4 to 5 hundred. Do you have a part # or numbers, The # for the part that they gave me is 5161549AA This is for a 1500 2010 Big Horn.