RE: Digital dash lights out '85 M7 bad odometer too
digital dash, or normal dash? were the lights dim before? was there any kind of power surge, like maybe hooking up jumper cables backwards?
I had the same problem on a 90 thunderbird, digital dash, when i hooked the jumper cables up backwards. I was in a hurry and i mis-read the symbols on the spare battery i was using. Blew out every bulb in the dashboard.
There may be a fuse somewhere. If it's the bulbs you need to take out the instrument panel, take it apart, and replace them. It's kind of a pain, but it's not too bad. They're just the normal small bulbs from NAPA, don't get them from the dealer.
odometer is probably a loose connection. if you take the cluster out make sure all the connectors on the back are tight