Next, remove the screws holding the left taillight on and open it up.  Unplug the two connectors and the ground wire from the tailgate wiring harness and pull the harness out from the body along with the rubber grommet.

Remove the c-clip holding the switch onto the lock cylinder and pull off the switch.  Then remove the c-clip holding the lock cylinder onto the tailgate and pull the cylinder out.  If you have the silver vanity panel on your tailgate, you have to remove it first before removing the lock cylinder by unscrewing the nuts from the studs.

After unplugging everything and pulling the harness out of the tailgate, you can now remove the regulator.  To do this, you need to remove the bolts holding it down and you may need to remove the latch for the tire carrier on the outside of the tailgate.

This is what the complete regulator looks like once you have pulled it out.  One of the reasons why my window wouldn't go up or down was because the regulator was so rusty.  The arms wouldn't move freely because of the lack of lubrication and lots of friction.  I could barely move the arms by hand once the motor was taken out.  I got another one from a junkyard for $50 and the problem has been cured.

If your regulator is still in good shape, you should prevent the arms from moving before taking out the motor.  I used a bolt and a bracket I found around the garage to secure the arms from snapping together.

This is the back side of the regulator showing you how the motor is mounted.  There are two bolts that hold the motor on.  Remove both and pull the motor loose.

This is a view of the motor by itself.  Now would be a good time to open the case and check the internals for any problems.