The 66-19180 includes heavy-duty laser-cut powder-coated steel front top mount coil spring spacers providing the ideal 1.75" of front leveling lift. It is that simple to level the front of these new RAM 4WD 2500/3500 HD trucks. New kits include a retention bolt has been added to lock the spacer to the frame and shock extensions have been added to optimize shock length after leveling the truck. Front leveling suspension Coil spacer Maximum lift of 1.75 inches Compatible with 20192023 Ram 2500/3500 4WD models Maximum tire diameter of 35 inches MODEL NO - 66-19180