Tried them in around 10 vehicles, put them in a land cruiser that had a 6" lift and 35's... worked fine for a few weeks but the truck developed a serious tire imbalance in two of the four tires. Soon after that a few of the other vehicles our shop had tried them in came back with balance issues. The only ones that it didnt effect were the 1 ton dulleys and a few 3/4 ton pick ups. Unless they are designed differently now I wouldnt recommend them. Fine on super heavy vehicles, however that land cruiser with its diesel engine I figured should have been fine because it wasnt light! just my :twocents: