Dana 60 16 Spline 4.10 Down Automatic Locker For Use With 16 Spline Axles;For Use With 4.10 And Down Gears;Automatic Locking; Legendary Traction;Unmatched Durability FORD F-250 BASE 1967 1969 1970 1971 1972 1973 1974 3.9L (3933cc) 4.9L (300) 5.8L Big Block FE (352) 5.9L Big Block FE (360) 5L (302) 6.4L Big Block FE (390) 7.5L (460) GAS Detroit Locker Detroit Locker Dana 60 16 Spline 4.10 Down Automatic Locker - 225S12C 225S12C Differentials
