does anyone have their sending unit out???

I understand what you want to accomplish, I changed my sons Dart over to VDO gauges and while the Ohms values are close I would still like to make it better. Look on-line at Techno versions Meter match, it is an small electronics box that can match up different ohms values Gauges/Senders. It would be alot easier if it can do what you need. I believe there are other Manufacturers of the same idea also. Mitch