Originally Posted by blackram
I have an 09 Ram Big horn Crew 4x2 with the 2.5" front coil spring spacers on stock 20" wheels with 305/50/20 General Grabbers. The 2.5" lift up front is maxed out IMO. It has some jarring going over the monster speed bumps in my neighborhood. I will be installing the CST 4" spindles with 1" front coil spacers and 1.5" rear coil spacers this weekend. Hoping to get some pics up of that. The CST 7" kit comes with a 4" lift for the rear, but includes mount relocates for the pan hard bar I believe. I would def not try to lift the rear more than 2" unless you find someone else who has done it first with no bad effects.
I would not recommend using the 1.5" rear spacer if you are going to do the 4'' and 1'' up front. I have CST 4'' and 1.5'' rear and it sits dead level. Actually looks a little nose high, but measurements are about 1/4" taller in rear. There are tons of guys running the 4" kit in the rear with no issues at all. I did days of research before I bought my kit, the main thing I saw was not to go full 7 inch lift because the 3" front coil spacer maxes out the suspension. The 4"+1" up front with the 4" in the rear will give you about 1.5" rake depending on your factory rake. I am eventually moving up to the 2" spacer added up front and 4" out back. Remember you have to get longer shocks out back if you get the 4" kit as well. Hope that helps you a little. Great looking truck!