Gauge troubleshooting
 

Been helping my dad with is egt gauge that’s suddenly stopped working. He has auto meter that he got probably 10 years ago. We’re pretty sure at this point that the gauge itself has gone out. What I’m trying to figure out is can gauges be mixed and matched? There’s a shop in town that has a Stewart gauge that would fit but he wasn’t sure if it would work since they’re two different brands.