Hit GE's appliance web site and look up your models owner's manual--get info off the appliance's data plate.
Fish around the appliance (think low and dirty) for a brown heavy duty envelope. (Hint look where the wiring diagrams are stashed). The parts you need are there.
The whole operation is easy to do -- I know nothing about appliances, but can read and follow directions. My propane fueled range went from pathetic performance (set up up for nat gas) to OK (lower BTU content of propane) performance. Talked to appliance nugs first and they told me what to do... too easy.