I just install some in my truck. It's a fairly involved process.... Had to modify the door latches in such a way to seperate the lock and the latch functions of the latch. There is no way to just "bolt on" these things. Basically what I did was remove the solid bar from the door handle and replaced it with a cable.
The lock arm on the door latch is tied directly to the lock actuator. The inside door handle does not lock the door anymore.
On the door latch I welded a cable stay on the top of the part that the outside push button pushes against and a small piece of tubing bent at a 90 degree angle for the cable to the inside door handle.
Remove the part of the latch the solid bar connects to and drill a hole in the pin on the lock pawl. The lock actuator rod can go through that hole and you put a cable stay on each side of the pin. Mount the lock actuators directly under the latch assy on the end of the door.
Takes a bit of work but the results are worth it.
