Rubber Isolator Mounting System (RIMS) allows frame flex and rigidity properties to perform as the OE, CNC-machined from aircraft-grade 6061 T-6 aluminum, Specific design and fit for each make and model, Protects frame rails, Oil drain access hole pre-cut into the plate for easy oil changes without having to remove the skid plate, CNC-machined aluminum brackets with quality hardware for secure mounting, Made in the U.S.A.