Yukon Gear Dura Grip Positraction For GM 12 Bolt Car w/ 30 Spline Axles / 3.73+

Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a high strength nodular case, forged 4320 chromoly spider gears, and composite clutches. For unmatched positraction performance, the Dura Grip is the ultimate choice. When your vehicle demands performance, durability and strength, choose Yukon Dura Grip. Fits GM 12 bolt truck, 3.73 and up ratios, 30 spline. Dura Grip positractions feature a 4-spring design and composite clutches for long life and forged internals for high strength. Yukon recommends the use of high grade Non-Synthetic GL-5 gear oil and Yukon LSD (Limited Slip Differential) additive for long life and smooth operation. Part number OILADD. The use of synthetic oil is not recommended and may result in aggressive or noisy operation. 12T GM 30spl HD 3.73 & UP DURAGRIP POSITRACTION, COMPOSITE CLUTCH Fitment: Chevrolet Blazer Base 1969 to 1974 Chevrolet Blazer Custom Deluxe 1987 Chevrolet Blazer Silverado 1987 Chevrolet Brookwood Base 1972 Chevrolet C10 Big Ten 1978 to 1980 Chevrolet C10 Cheyenne 1975 to 1981 Chevrolet C10 Custom 1981 to 1986 Chevrolet C10 Custom Deluxe 1975 to 1980 Chevrolet C10 Deluxe 1981 Chevrolet C10 Scottsdale 1975 to 1986 Chevrolet C10 Silverado 1975 to 1986 Chevrolet C10 Pickup Base 1963 to 1974 Chevrolet G10 Beauville 1975 to 1981 Chevrolet G10 Bonaventure 1981 to 1982 Chevrolet G10 Chevy Van 1975 to 1981 Chevrolet G10 Sportvan 1975 to 1981 Chevrolet G10 Van Base 1967 Chevrolet G10 Van Base 1969 to 1974 Chevrolet G10 Van Sportvan 1968 to 1974 Chevrolet K10 Cheyenne 1975 to 1981 Chevrolet K10 Custom 1981 to 1986 Chevrolet K10 Custom Deluxe 1975 to 1980 Chevrolet K10 Deluxe 1981 Chevrolet K10 Scottsdale 1975 to 1986 Chevrolet K10 Silverado 1975 to 1986 Chevrolet K10 Pickup Base 1963 to 1974 Chevrolet K10 Suburban Base 1967 to 1974 Chevrolet K10 Suburban Custom 1981 to 1985 Chevrolet K10 Suburban Custom Deluxe 1975 to 1980 Chevrolet K10 Suburban Deluxe 1981 Chevrolet K10 Suburban Scottsdale 1975 to 1980 Chevrolet K10 Suburban Scottsdale 1982 Chevrolet K10 Suburban Scottsdale 1984 to 1985 Chevrolet K10 Suburban Silverado 1975 to 1977 Chevrolet K10 Suburban Silverado 1979 to 1980 Chevrolet K10 Suburban Silverado 1982 to 1983 Chevrolet K10 Suburban Silverado 1985 Chevrolet K5 Blazer Base 1976 Chevrolet K5 Blazer Cheyenne 1975 to 1980 Chevrolet K5 Blazer Custom 1981 to 1986 Chevrolet K5 Blazer Custom Deluxe 1975 Chevrolet K5 Blazer Custom Deluxe 1977 to 1980 Chevrolet K5 Blazer Deluxe 1981 Chevrolet K5 Blazer Scottsdale 1984 Chevrolet K5 Blazer Silverado 1978 Chevrolet K5 Blazer Silverado 1980 to 1986 Chevrolet R10 Custom Deluxe 1987 Chevrolet R10 Scottsdale 1987 Chevrolet R10 Silverado 1987 Chevrolet Suburban Base 1963 to 1966 Chevrolet V10 Custom Deluxe 1987 Chevrolet V10 Scottsdale 1987 Chevrolet V10 Silverado 1987 Chevrolet V10 Suburban Custom Deluxe 1987 Chevrolet V10 Suburban Scottsdale 1987 Chevrolet V10 Suburban Silverado 1987 GMC C15 Base 1975 to 1978 GMC C15 Heavy Half 1977 to 1978 GMC C15 High Sierra 1975 to 1978 GMC C15 Indy Hauler 1977 GMC C15 Sierra Classic 1975 to 1978 GMC C15 Sierra Grande 1975 to 1978 GMC C15 Street Coupe 1978 GMC C15 Suburban Base 1975 to 1978 GMC C15 Suburban High Sierra 1975 to 1978 GMC C15 Suburban Sierra Classic 1975 to 1978 GMC C15 Suburban Sierra Grande 1975 to 1978 GMC C15/C1500 Pickup Base 1967 to 1974 GMC C15/C1500 Suburban Base 1967 to 1974 GMC C1500 Base 1979 to 1986 GMC C1500 Heavy Half 1979 to 1980 GMC C1500 High Sierra 1979 to 1986 GMC C1500 Sierra Classic 1979 to 1986 GMC C1500 Sierra Grande 1979 to 1982 GMC C1500 Street Coupe 1979 to 1982 GMC C1500 Suburban Base 1979 to 1986 GMC C1500 Suburban High Sierra 1979 to 1986 GMC C1500 Suburban Sierra Classic 1979 to 1986 GMC C1500 Suburban Sierra Grande 1979 to 1982 GMC G15 Rally 1975 to 1978 GMC G15 Rally STX 1975 to 1978 GMC G15 Vandura 1975 to 1978 GMC G15/G1500 Van Base 1967 GMC G15/G1500 Van Base 1970 to 1971 GMC G15/G1500 Van Rally 1968 to 1969 GMC G15/G1500 Van Rally 1971 to 1974 GMC G15/G1500 Van Vandura 1968 to 1974 GMC G1500 Base 1964 to 1966 GMC G1500 Rally 1979 to 1987 GMC G1500 Rally Custom 1983 to 1984 GMC G1500 Rally STX 1979 to 1987 GMC G1500 Vandura 1979 to 1987 GMC G25 Rally 1975 to 1978 GMC G25 Rally STX 1975 to 1978 GMC G25 Vandura 1975 to 1978 GMC G25/G2500 Van Base 1967 GMC G25/G2500 Van Base 1970 to 1972 GMC G25/G2500 Van Rally 1968 to 1969 GMC G25/G2500 Van Rally 1971 to 1974 GMC G25/G2500 Van Vandura 1968 to 1974 GMC G2500 Rally 1979 to 1981 GMC G2500 Rally STX 1979 to 1981 GMC G2500 Vandura 1979 to 1981 GMC K15 Base 1975 to 1978 GMC K15 High Sierra 1975 to 1978 GMC K15 Indy Hauler 1977 GMC K15 Sierra Classic 1975 to 1978 GMC K15 Sierra Grande 1975 to 1978 GMC K15 Suburban Base 1975 to 1978 GMC K15 Suburban High Sierra 1975 to 1978 GMC K15 Suburban Sierra Classic 1975 to 1978 GMC K15 Suburban Sierra Grande 1975 to 1978 GMC K15/K1500 Pickup Base 1966 to 1974 GMC K15/K1500 Suburban Base 1967 to 1974 GMC K1500 Base 1979 to 1986 GMC K1500 High Sierra 1979 to 1986 GMC K1500 Sierra Classic 1979 to 1986 GMC K1500 Sierra Grande 1979 to 1982 GMC K1500 Suburban Base 1979 to 1985 GMC K1500 Suburban High Sierra 1979 to 1985 GMC K1500 Suburban Sierra Classic 1979 to 1985 GMC K1500 Suburban Sierra Grande 1979 to 1982 GMC P25/P2500 Van Base 1973 GMC R1500 Base 1987 GMC R1500 High Sierra 1987 GMC R1500 Sierra Classic 1987 GMC R1500 Suburban Base 1987 GMC R1500 Suburban High Sierra 1987 GMC R1500 Suburban Sierra Classic 1987 GMC Suburban Base 1963 to 1966 GMC V1500 Base 1987 GMC V1500 High Sierra 1987 GMC V1500 Sierra Classic 1987 GMC V1500 Suburban Base 1987 GMC V1500 Suburban High Sierra 1987