Actually I have a 97 Mustang GT the odometer went out in it also. All the other gauges work fine, just the tripometer and odometer went. I think it's something to do with the gears. I took it out and fooled with it a little and it went for about a half mile then stopped again. From researching it looks like that's a quite common problem at least with the odometer. I'm going to attempt to fix it again, I just don't think it's worth paying $300 - $500 for a new instrument cluster.