THM425 Gasket Transmission parts, repair guidelines, problems, manuals

Transmission general data

Number of gears Transmission Type Drive ATF (full capacity) L ATF (change) L ATF type
3 AT RWD 12,3 6 Dexron II
Related transmission models or modifications of this transmission:
Part type (1) Expand

More lightweight gearbox THM325 took the place of the THM425 in both car ranges in late 1978. Since 1979 and later longitudinal engine FWD cars have been equipped with the THM325. The THM325 was upgraded to THM325-4L with an overdrive added in 1982, but all cars with this gearbox switched to more-common transverse engine mounting in 1986.