I have run Cal-Tracs for many miles on the street, on my Duster and Dakota. They make the ride a little harsher, and you get a rattle from the linkage. (You should back off the preload on the street) You can use poly bushings in the spring eyes to take a small amount of the harshness away, and you can make nylon or rubber "bumpers" for the tops of the springs to quiet the rattles down too.