I live in MT and have to drive ice/snow roads regularly in winter. We do not salt or mag chloride our roads. Sometimes we get a little sand in the curves, but no one counts on that! I swear by the Duratracs. Running 35's on a 6" Ujoint lifted e350 and they perform exceptionally well. Have Duratracs on my F150, and had them on my previously owned Jeep Cherokee and Jeep Rubicon.
2003 E350, 7.3L, Sportsmobile Top, Advanture Interior, U-Joint 4WD/coil conversion and 2005 front clip