Ideally, you want the bar to be as long as possible and horizontal at ride height. Here is a pic of my ECE track bar (before I added air bags). The left side of the bar mounts in the stock location. If you have the money, I'd recommend the ECE track bar or something similar. Keep in mind though that the ECE bracket won't work if you eventually notch the frame, and I assume you will (see second picture).
