General Description

AX4S Transaxle Assembly:

NOTE: The AX4S automatic transaxle was formerly designated the AXOD. To avoid unnecessary re-tooling and ensure proper identification, the AX4S will retain its original "AXOD METRIC" main control cover.

The AX4S automatic overdrive transaxle is a fully automatic transaxle with four forward speeds and REVERSE, NEUTRAL, and PARK.

The AX4S has two planetary gear sets and a combination planetary/differential gearset. Four multiple plate clutches, two band assemblies and two overrunning clutches act together for proper operation of the planetary gearsets.

A torque converter clutch is coupled to the engine crankshaft and transmits engine power to the geartrain by means of a drive chain that connects the drive sprocket and driven sprocket. The application of the torque converter clutch is controlled through an electronic control integrated in the Powertrain Control Module (PCM). These controls, along with the hydraulic controls in the main control valve body, operate a piston plate clutch in the torque converter to provide improved fuel economy by eliminating converter slip when applied.