Axle Differential Ring Gear Bolt Kit by ARP

Ring gear to differential case, (10), 7/16-20 x 1 1/16. ARP Pro series bolt built to 200,000 psi strength. 12 point socket head. 1/2 shank.
The tremendous shock loads generated at launch by most any drag racing vehicle equipped with todays sticky tire compounds or the acceleration and deceleration of oval track cars put considerable strain on the ring gear. For this reason, the fastener experts at 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.
TECH NOTE - It is critically important to properly tighten ring gear bolts and make sure they dont loosen. This is especially important in drag cars with tire shake. Its also a good idea to 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.

Ford Mustang Years:
1965 (65), 1966 (66), 1967 (67), 1968 (68), 1969 (69), 1970 (70), 1971 (71), 1972 (72), 1973 (73)
Above years shown are used for searches and are not application listings.

Mercury Cougar Years:
1967 (67), 1968 (68), 1969 (69), 1970 (70), 1971 (71), 1972 (72), 1973 (73)
Above years shown are used for searches and are not application listings.

Ford Falcon and Ranchero Years:
1970 (70)
Above years shown are used for searches and are not application listings.

Ford Fairlane and Ranchero Years:
1964 (64), 1965 (65), 1966 (66), 1967 (67), 1968 (68), 1969 (69), 1970 (70)
Above years shown are used for searches and are not application listings.

Ford Torino and Ranchero Years:
1968 (68), 1969 (69), 1970 (70), 1971 (71)
Above years shown are used for searches and are not application listings.

Ford Truck F1, F2, F3, F100, F150, F250, F350 Years:
1957 (57), 1958 (58), 1959 (59), 1960 (60), 1961 (61), 1962 (62), 1963 (63), 1964 (64), 1965 (65), 1966 (66), 1967 (67), 1968 (68), 1969 (69), 1970 (70), 1971 (71), 1972 (72), 1973 (73), 1974 (74), 1975 (75), 1976 (76), 1977 (77), 1978 (78), 1979 (79), 1980 (80), 1981 (81), 1982 (82), 1983 (83)
Above years shown are used for searches and are not application listings.

Ford Bronco Years:
1966 (66), 1967 (67), 1968 (68), 1969 (69), 1970 (70), 1971 (71), 1972 (72), 1973 (73), 1974 (74), 1975 (75), 1976 (76), 1977 (77), 1978 (78), 1979 (79), 1980 (80), 1981 (81), 1982 (82), 1983 (83)
Above years shown are used for searches and are not application listings.

Ford Mustang Fox Body and SN-95 Years:
1979 (79), 1980 (80), 1981 (81), 1982 (82), 1983 (83), 1984 (84), 1985 (85), 1986 (86), 1987 (87), 1988 (88), 1989 (89), 1990 (90), 1991 (91), 1992 (92), 1993 (93), 1994 (94), 1995 (95), 1996 (96), 1997 (97), 1998 (98), 1999 (99), 2000 (00), 2001 (01), 2002 (02), 2003 (03), 2004 (04)
Above years shown are used for searches and are not application listings.

NPD Part Number : 4216-1AK
Manufacturer Reference #'s: 350627-S,