Quote:
Along side the steering column is a rocker switch 2W / AWD . Would pushing the 2 Wheel switch be the same as dropping the drive shaft ?
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Probably not. The electronic shift AWD systems are not the same as mechanically disconnecting anything, whether via a transfer case shifter or physically disconnecting the shaft.
Modern vehicles use a number of electronic controls for stability as well as drive control and often rely on wheel speed sensors, axle rpms or other variables in their attempts to optimize everything. A switch that says "2WD" is probably just advice to the drive train computer about what you plan to do and may be just one factor in how it manages the driving power.