Front crush tubes are:
c. designed to transfer collision energy.
Front crush tubes are an essential part of a vehicle's safety system. They are designed to absorb and transfer collision energy during an impact, helping to protect the occupants of the vehicle by reducing the force of the impact on the vehicle's structure.
These crush tubes are strategically placed in the front of the vehicle to help manage the impact forces in the event of a collision. By deforming and absorbing energy, they play a crucial role in dissipating the crash forces and minimizing damage to the vehicle and its occupants.
Therefore, front crush tubes are not mounted to the upper frame rail or made of UHSS (Ultra High Strength Steel). Additionally, if front crush tubes are damaged in a collision, they should be inspected and replaced as needed to maintain the vehicle's safety integrity.