I'm researching digital odometres. Does anyone have any information or know a place I could ring to find out how these work?
try ringing your local jaycar shop
VDO Australia are the people to talk to about these things. They supply them for fords and holdens.
My freind just bought a kit for his EH. He got a Speedo that had a digital odometer display. Cost about 300 bucks. Easy as pie to install.
http://oldholden.com/gallery/view_album.php?set_albumName=jil988
Murray maybe of some help if you are doing it yourself.