Harsco Rail’s LD 0307A HY-RAIL® Guide Wheel unit is used to adapt light duty trucks and SUV’s, meeting Harsco Rail’s recommended vehicle specifications, for railway applications requiring travel on the highway and on the rail. The LD 0307A has a rugged, compact design that continuously provides the durability needed on the track, and features rubber cord suspension, electrical track insulation, and mechanical safety pins.