It's almost a plug and play job.
The wiring for the pod is already installed in your truck. It's located in the center of the dash under the vent looking thing.

You will need to get the oil sending unit from the donor truck or order a new one. You also need to remove the oil light in the speedometer pod. Don't forget to do that or things will not work right.

It's been awhile since I've put one in, but I know the screw hole are in the metal part of the dash. You just need to locate them. Pull the pod yourself, from the donor truck, so you can get an ideal how things go.
Good luck and have fun. <img src="/forums/images/graemlins/kewl.gif" alt="" />