This is copied from Nick Russells blog awhile back and how he got around the lack of parts ;
I wrote in yesterday’s blog, the Explorer requires a Neutral Tow Kit, which is basically an LED light that plugs in under the dashboard, and a simple computer procedure from a Ford dealer to set up the transfer case for towing. However, the company that made the kit for Ford has gone out of business, and a dealer in Oregon bought up every kit available and was charging $375 plus $30 shipping, for an item that originally retailed for about $30. What a rip off!
A lot of internet research, and repeated phone calls to my two most reliable technical guys, Greg White and Ron Speidel, confirmed my belief that any LED light would complete the circuit and work. Thanks for all of your help and patience with my repeated phone calls, guys.
The next step was finding a Ford dealer that would “flash” the computer for me. Jarrett Gordon Ford, in Davenport, Florida was willing to try it, and it worked like a charm! A $2 LED light beats the heck out of over $400 to accomplish the same thing!rts.