ARP's legendary quality helps you hit the track with confidenceSpecially designed by ARP to handle the tremendous shock loads generated while racingForged from a premium grade chrome moly steelRated at 200,000 PSI, which is considerably stronger than Grade 8 hardware.940 under head length, 7/16-20 thread size, and 5/8" socket sizeThe tremendous shock loads generated at launch by most any drag racing vehicle equipped with today's sticky tire compounds, or the acceleration and deceleration of oval track cars, puts considerable strain on the ring gear. For this reason, the fastener experts at ARP have developed the Pro Series ring gear bolts. They're forged from premium grade 8740 chrome moly steel, and they are heat-treated to a nominal rating of 200,000 psi tensile strength. Where required, the kits include specially hardened and precision-ground washers.
