Any guy who's had to change the coil springs in his vehicle knows the potential hazards involved in doing this job. What can make the task even more hazardous is when there's no weight on the vehicle.

Ask anyone who’s ever lowered or lifted a truck and needed to compress a coil spring how nerve racking it can be. Truck coil springs are large and designed to hold the weight of a 4,500-5,500-pound ...