Overview Product Description ARP6408S 64 pitch stainless steel 8 tooth pinion gears heat treated to 36-38 hardness Product Videos Custom Field Product Reviews Write a Review Write a Review × ARP 8T 64P Coated Pro Pinion ARP6408S Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *