This is what New Era writes about this skid:
SUPER DUTY Front or Rear Skid Plate Covers 3.2mm 6061-T6 Aluminum. Adding protection for the steering servos. These will work for either the front or the rear. Order two of these to complete one vehicle. SUPER DUTY Front or Rear Skid Plate Covers are CNC machined and formed from 6061-T6 Aluminum. 3.2mm (1/8 inch) thickness offers much greater protection than the stock plastic while remaining light weight to maintain performance.