A500 or A518?

The RE series of transmissions includes the 42,44,46,47, and 48RE transmissions. These transmissions use three solenoids, a temperature sensor, a pressure transducer, and one external VR speed sensor. Two solenoids are simple on/off operation for 4th gear and TCC. The third solenoid is used for governor pressure and is monitored by the pressure transducer. Early year models used a VSS mounted in the tailshaft. The VSS was phased out of production through year models 1996-97. Later year models used an external MUX PRNDL to indicate shift position to the instrument cluster. The PRNDL was phased in during the 2001-02 production.