The advantages of crossover steering differ based upon how tall your truck is and how you use it. With my 8" Skyjacker and D60 front, crossover tightened my steering up significantly. It was night and day difference keeping it between the lines on the road. The real added bonus is that I can turn all the way to the steering stops either direction. With a 2" drop pitman arm and a 4-6"drop draglink, I could not even come close. I did have to add a power steering cooler, but it was less than $30. what you need depends on which kit you buy, or if you do it yourself, and also your vehicle....IE..front axle. You need a 2wd steering box and power steering cooler. The ORD kit (like I used) will supply a dropped pitman arm, draglink with ends, and new steering arm. The arm will be different if you have a 10bolt or D44 front than if you have a D60. See ORD's webpage for pics and more details.