Might run 200-300 to bring down just the rear and IMO it wont change the ride at all but ppl have different opinions on that. The escalade running boards look like the factory ones but they have a chrome strip the runs down the side. Not that your currents don't look good thoHow much would it cost to bring down the back end ? And would it affect the smoothness of my ride ? And also the run in bords I got now don't look that good ? Escalade have a spefic kind your referring to ?