if you dont have a specific application for it. i would suggest not to get it. rear steer makes the truck next to undriveable at any speed above a brisk walk. its hard to get both trimmed so it will drive strait, and turns way to fast for any thing but a crawling type setup. I had it on an emaxx that i had setup like a crawler type truck. it was going to be a "spy truck" and i didnt want any reason for it to get stuck.