Well it does, but generally speaking, all 4cyl transfercases from 1979-1995 are the same.
More specifically,
- All 1979-1982 4speed transfercases are the same because they are TOP shifting, have a special 4speed input gear, and use a SHORT reduction housing design due to the cast iron transmission design (L43 if 11/1978-10/1980 or L45 if 11/1980-10/1982).
- All 1982-1983 5speed transfercases are the same because they are TOP shifting, are the first to use the 5speed input gear with the 'fuse', and use a SHORT reduction housing design due to the cast iron transmission design (L50 if 11/1981-10/1982 or L52 if 11/1982-10/1983).
- All 1984-1987 5speed carburated (22R) transfercases are the same because they too use the same input gear as the '82-83 5speeds, however now the low range gears have two extra preload plates that we refer to as "run quiets", they are FORWARD shifting, and feature a TALL reduction housing design due to the new ('84+) aluminum transmission (G52 if 11/1983-10/1984 and G54 if 11/1984-10/1987) design.
- All 1985-1988 5speed EFI (22R-E) transfercases are the same because they too use the same "run quiet" gear set as the '84-87 5speeds and the TALL reduction housing design also due to the aluminium trans ('85-88 W56 ), however they are TOP shifting.
- All 1986-1987 Turbo (22R-TE) 5speed transfercase are the same because they too use the same "run quiet" gear set as the 1984+ models except that the input has an increased spline count of 23-SPLINEs, they use the same TALL reduction housing (this time for a R151F transmission), but are FORWARD shifting.
- All 1989-1993 5speed transfercases are the same again because also use the same "run quiet" low range gear set as the 1984+ units and feature a TALL reduction housing design (this time for the late model W56), but not only is it a FORWARD shift style, but its also a SHORT-ROD version of the Forward shift rods, the rods are a bit shorter than the carburated 1984-1987 forward shift style, except the late model W56 has the transmission shift lever and the transfercase shift lever closer together in the 1989-1995 model trucks to make it more "convenient" for the driver to select between the levers.
- All 1994-1995 5speed transfercases are identical to the 1989-1995 style transfercases except they use an ELECTRIC SPEEDOMETER GEAR SPEED SENSOR as apposed to the cable type that is found from all previous transfercases from 11/1978-10/1993
- Oh, and one last thing is that, we dont know for sure, but we believe that all 1979-1980 transfercases used a mainshaft that had a softer heat treat to it since we have seen these "yield" under torque as apposed to shearing in half.
So do ya got it?
