Both universal joints, Chevrolet 1955-1968 made for High Performance engines!!

The trunion is larger than stock units so they do not break and last longer!
this is a special U-joint that has a larger trunion diameter than stock units
to resist breaking from stress.
Fits years listed:55 1955 56 1956 57 1957 58 1958 59 1959 60 1960 61 1961 62 1962 63 1963 64 1964 65 1965 66 1966 67 1967 68 1968 69 1969 70 1970 71 1971 72 1972 73 1973 74 1974 75 1975 76 1976 77 1977 78 1978 79 1979 80 1980 81 1981 82 1982 83 1983 84 1984 85 1985 86 1986

In any correspondance please be specific and include our ebay # EE24312
