—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1979: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1980: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1981: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: 1975: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: 1975: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1977: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier · 1978: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1977: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier · 1978: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: 1975: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1978: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1979: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1980: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42 · 1981: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio~GM 12
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio~GM 12
—
Notes: 1975: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1976: GM 12 Bolt Truck; 3.42 Ratio · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 · 1978: GM 12 Bolt Truck; 3.42 Ratio · 1979: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 · 1980: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 · 1981: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1982: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1983: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1984: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1985: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1986: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio~GM 12
—
Notes: 1975: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1976: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1977: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1978: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1979: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1980: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1981: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1982: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1983: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1984: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1
—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; 3.42 Ratio · 1977: GM 12 Bolt Truck; 3.42 Ratio · 1978: GM 12 Bolt Truck; 3.42 Ratio · 1979: GM 12 Bolt Truck; 3.42 Ratio · 1980: GM 12 Bolt Truck; 3.42 Ratio · 1981: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1982: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1983: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1984: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1985: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1986: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12
—
Notes: 1975: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1976: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1977: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1978: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1979: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1980: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1981: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier GM 1 · 1982: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1983: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio · 1984: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
—
Notes: GM 12 Bolt Truck; 3.42 Ratio~GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 and Down Carrier 3.42
—
Notes: GM 12 Bolt Truck; Ring and Pinion Set; 3.42 Ratio; Fits 3 series 3.42 & Down Carrier GM 12 Bolt Truck; 3.42 Ratio
- + 203 additional fitments not shown
