ARP Ring Gear Bolt Kits.The tremendous shock loads generated at launch by most drag racing vehicles equipped with today’s sticky tire compounds or the acceleration and deceleration of oval track cars put considerable strain on the ring gear. ARP Pro Series ring gear bolts are forged from premium grade 8740 chrome moly steel and are heat-treated to a nominal rating of 200,000 psi tensile strength. Specially hardened, precision-ground washers are included where required. It is critically important to properly tighten ring gear bolts. This is especially important in drag cars with tire shake. Check bolt tightness on a routine basis. If you use a locking compound (like Loc-Tite), it is best to install the ring gear first without any compound, then remove the bolts one at a time, reinstalling them with the compound. Be sure and torque each bolt before going on to the next one, because the locking compound sets up fast. Install and torque the bolts in an alternating or crossing pattern to distribute the load evenly around the ring gear.