Drive shafts (if applicable) shall be equipped with universal joints at the power transfer drive end and at the driveaxle end. The power transfer drive end shall have a spliced slip joint. The shaft shall be dynamically balanced andmounted to minimize universal joint deflection. Drive shaft components shall be adequate to transmit the maximumdelivered torque of the motor. The drive shaft shall be guarded to prevent it from striking the ground or damagingthe floor, fluid lines, air lines, wire harnesses, or other equipment of the vehicle, in the event of a tube or universaljoint failure. The batteries shall be packed in battery trays. These packs are placed within the vehicle in a fire-resistant box to equalize weight between wheels on the same axle and to achieve appropriate proportioning betweenthe front and rear axles.