Let's see your A Body Rally Dash in-dash tach replacements...

I got mine from either year one or classic industries. Look like stock not cheap but a direct replacement

www.classicindustries.com/product/1967/dodge/dart/parts/ma1524.html

www.classicindustries.com/product/1967/dodge/dart/parts/ma1525.html

I have one of these in my Duster. It's awful. I mean, it looks good, but the accuracy is pretty lacking. And as of late it's been jumping around A LOT. I've checked the connections and that helped a little, but not much. Not sure how long it will last.

Not sure how good the 3 3/8" AutoMeters are, I know that's a pretty small tach to be super accurate, but they can't be worse. I'll probably be swapping my stock appearing replacement for an AutoMeter.