This old thread should help you out a little:

http://www.vehicross.info/forums/sho...hlight=dummies

Basically we are having an issue with terminology here.

Half shaft refers to the entire assembly from the splined shaft that enters the wheel hub to the splined shaft that enters the differential.

In that case, no the driver and passenger side are not the same. The driver side has a MUCH longer shaft that enters the differential (note our offset differential).

The axle shafts (the small shaft between the 2 green cups (outer race) are the same on both the driver and passenger side.

Further note - one should refurbsh/replace the inner and outer race as well as the cage and the ball bearings during a repair. All of those components wear at the same rate.