What brakes do the parking brake lock?

The rear tires except Subaru which does the front.

Usually the rear axle. The parking brakes are also the emergency brakes, and if they were on the front, could render the vehicle unsteerable in an accident avoidance maneuver.

The parking brake needs adjusted, Look under the drivers side body and you will see 1 long cable coming from the front of the cab and running towards the rear close to the frame and just behind the...

Be pointless. The point of anti-lock brakes it to effectively "pump" the brakes for you.

It's quite cheap and easy to create a mechanical connection (typically, a wire that is pulled by a lever) that will hold drum brakes in a "tight" position. That's because brake shoes require...