well the first thing i would check is the speedo gear. On the driver side of your transmission toward the back you will see a plug that goes into the tailshaft housing. Should be the very last possible wiring coming out of the
tranny. This plug is held in by an 11mm bolt (pretty sure of the size) if you take out the bolt and pull the speedo gear out and there are no teeth on the gear thats ur problem. They are cheap plastic gears and happens all the time. the speedo and tripo i believe in 95 are electronic controlled. They quit with the cable in the early 90s on the mustangs. I think.