MACH I Member
Joined: Jul 2008
Location: Long way from home
The gauges themselves almost never fail. There are most likely problems with the sending units. I doubt the gauges are service replaceable, you'd need to replace the cluster as well. If you replace the cluster you will need the dealer to program it or it will go into theft mode (PATS) and not run.
1988 Mustang LX coupe will miss you greatly
2004 Mazda 6s 5 door Sport w/5spd/3.0/RX8wheels/Kon/Eibach/and then some