I'm looking for wiring info, (schematics and parts availability) for our '99. I installed Rubi axles from an '05 and haven't wired them in yet. My plan is to try use find and use un-used wiring in the existing harness and also use stock type switches for each axle in the location adjacent to my rear wiper switch. Hopefully In can also figure out a way to lock the front axle when only in 4wd. I don't have much for options on the rig, (no AC, cruise, etc), so I assume there is un-used wires in place. I would also like to use stock connectors to do this. I need wiring schematics to pursue this. If it's feasible, I also need a source for the OEM components. Any one have any thoughts on this? Also, any pics of the location of the stock air pumps?