Injuries from a disconnected suspension system can be catastrophic.  Two recent examples would be Tony Stewart and Wayne Johnson.  Both suffered severe lower leg injuries that could have ended their careers had things played out slightly different.  

Driveline Blocks are designed specifically to reduce the occurrence and severity of these injuries.

This high density, lightweight solution is engineered to fit in the unused void under the driver’s seat and absorb the impact of a disconnected torque tube. GI Safety Solutions Driveline Blocks are the only water, chemical, and fire resistant piece of equipment available that is capable of potentially eliminating catastrophic damage resulting from a disconnected torque tube.