I'm still driving my 1994 Voyageur (bought new). 3.0 litre six, 3-speed automatic. Flawless reliability, but admittedly only 145,000 km. Change tranny fluid every 50,000 km using only Mopar fluid. Think this may be a key to good tranny relliability. Also, the 3-speed unit is an older, more reliable design than the 4-speed, I believe.