I am installing the ORD Doubler in my 90 Blazer and I am trying to figure out what to do about the speedometer. I was hoping somebody out there who has put a 205 in a later model truck could tell me what they did. My speedometer works off of an electronic pickup in the 241 transfer case. The 205 has the mechanical speedo output. Is there someplace that I can get an electronic output for the 205? Thanks for the help.