I recently purchaced a 99 Lightening Crate Motor to instal into my 79 F150 4x4. I am planning on useing a 4R100 out of a Excursion for a Transmision. Right now I am not certian if I should try and use an entire wiring harness out of a 99 F150, and customize my dash, etc, or try to make a coversion harness to run this set up with my 79 harness? Has anyone ever attempeted this madness, or ever heard of a company that might be able to help with the wiring? Any imput would be appreciated.