Overview Product Description ARP 12 Tooth 64 Pitch Pinion Ultra Lite for Drag Racing ARP6412D Product Videos Custom Field Product Reviews Write a Review Write a Review × ARP 12T 64P Thin Pinion ARP6412D Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *