Dana Spicer D44 10 bolt cover with 8.5" ring gear. Found in both front and rear applications. Rear applications use a bolt in axle. Axles are 30 spline. Front applications came in both standard and reverse rotation. Ring Gear Diameter: 8.5 Ring Gear Bolts: (10) 3/8 x 24 RH Cover Bolts: 10 Carrier Breaks: 3.73 / 3.92 Spline Count: 1.375 / 26 Float: SF or Front Semi-Float Type: Pinion Support: False Axle Lugs: Compatible with Models: 1/2 Ton Dodge Pickup: 1955 - 2002 (Front) 1/2 Ton GM Pickup: 1960 - 1980 (Front) 1/2 Ton GM Pickup: 1967 - 1972 (Rear) 3/4 Ton Dodge Pickup: 1955 - 2002 (Front) 3/4 Ton GM Pickup: 1960 - 1980 (Front) 420: 1958 - 1970 (Rear) Blazer: 1969 - 1979 (Front) Bronco: 1972 - 1996 (Front) CJ5: 1966 - 1975 (Rear) CJ6: 1966 - 1975 (Rear) CJ7: 1986 - 1986 (Rear) CJ8: 1981 - 1986 (Rear) Commando: 1966 - 1973 (Rear) F100: 1948 - 1979 (Rear) F150: 1967 - 1996 (Front) F250: 1959 - 1989 (Front) F350: 1979 - 1979 (Front) Grand Wagoneer: 1984 - 1991 (Front) Grand Wagoneer: 1984 - 1991 (Rear) J10: 1972 - 1983 (Rear) Mark I: 1950 - 1970 (Rear) Mark II: 1950 - 1970 (Rear) Mark X: 1958 - 1970 (Rear) Ram Charger: 1974 - 1993 (Front) Rodeo: 1993 - 1997 (Rear) Scout 800: 1967 - 1971 (Rear) Scout II: 1972 - 1980 (Front) Scout II: 1972 - 1980 (Rear) Suburban 1/2 Ton: 1969 - 1979 (Front) TJ: 1997 - 2004 (Rear) TJ: 2003 - 2005 (Front) Wagoneer: 1971 - 1992 (Rear) Wagoneer: 1974 - 1992 (Front) XJ: 1986 - 1989 (Rear) XJ Sport: 1986 - 1989 (Rear) XJR: 1940 - 1940 (Front) XJS: 1976 - 1997 (Rear) XK8: 1961 - 1974 (Rear) X-Type: 1974 - 1995 (Rear)