High-strength pinion gear produced from tough 7075 T6 aluminum and especially hardcoated for superior energy, light-weight, and high durability. Developed on a unique gear device, all pinions function ultra-precise enamel shaping and ultra-true running for vibration-free procedure. Fine inside threading enables easy installation. Each pinion is fine etched due to the enamel quantity for fast & easy recognition. Fits GTXE cars.