—
Notes: 1975: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1976: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1977: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1978: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1979: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1980: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1981: GM 8.5 in.; 30 Spline; 33-3/8 in. Length; 30 Spline Upgrade, Requires 30 Spline Carrier Case · 1982: GM 8.5 in.; 30 Spline; 33-3/8 in. Length; 30 Spline Upgrade, Requires 30 Spline Carrier Case · 1983: GM 8.5 in.; 30 Spline; 33-3/8 in. Length; 30 Spline Upgrade, Requires 30 Spline Carrier Case · 1984: GM 8.5 in.; 30 Spline; 33-3/8 in. Length; 30 Spline Upgrade, Requires 30 Spline Carrier Case · 1985: GM 8.5 in.; 30 Spline; 33-3/8 in. Length; 30 Spline Upgrade, Requires 30 Spline Carrier Case · 1986: GM 8.5 in.; 30 Spline; 33-3/8 in. Length; 30 Spline Upgrade, Requires 30 Spline Carrier Case · 1987: GM 8.5 in.; 30 Spline; 33-3/8 in. Length; 30 Spline Upgrade, Requires 30 Spline Carrier Case · 1988: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1989: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1990: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1991: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1992: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1993: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1994: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1995: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
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Notes: 1967: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1969: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1970: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1971: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1972: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1973: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1974: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: 1967: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1969: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1970: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1971: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1972: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1973: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1974: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: 1969: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1970: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1971: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1972: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1973: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1974: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: 1968: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1969: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1970: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1971: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1972: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1973: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1974: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: 1968: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1969: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1970: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1971: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1972: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1973: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1974: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: GM 8.5 in.; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: GM 8.5 in.; 30 Spline; 33-3/8 in. Length 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: 1979: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1980: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1981: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1982: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1983: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1984: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: 1979: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1980: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1981: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1982: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1983: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1984: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1985: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1986: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1987: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1988: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1989: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1990: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1991: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1992: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1993: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1994: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1995: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: 1979: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1980: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1981: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1982: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1983: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1984: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: 1985: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1986: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1987: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1988: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1989: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1990: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1991: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1992: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1993: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: 1979: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1980: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1981: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1982: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1983: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1984: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1985: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1986: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1987: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1988: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1989: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1990: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1991: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1992: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1993: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1994: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1995: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: 1979: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1980: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1981: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1982: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1983: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1984: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: 1985: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1986: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1987: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1988: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1989: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1990: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1991: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1992: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1993: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1994: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline · 1995: 8.5 in.; 10 Bolt; 8.875 in. 12 Bolt; 33 3/8 in. Long; 30 Spline
—
Notes: 1979: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1980: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1981: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1982: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1983: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1984: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1985: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1986: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1987: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1988: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1989: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1990: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1991: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1992: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1993: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1994: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1995: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length
—
Notes: 1979: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1980: GM 12 Bolt Truck; 30 Spline; 33-3/8 in. Length · 1981: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1982: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1983: GM 8.5 in.; 30 Spline; 33-3/8 in. Length · 1984: GM 8.5 in.; 30 Spline; 33-3/8 in. Length
- + 32 additional fitments not shown