I just had a good experience with repair and calibration of my '36 truck's temp gauge. It quit working after I did an R&R on the dashboard to repaint it. After a great suggestion from our own Chipper, I contacted:
The Temperature Gauge Guy
Roy Martin
172 Laurel Hill Drive
So. Burlington VT 05403
802-862-6374
I mailed him my gauge on 6/11, and I received it back today, 6/23. Fast service, and he did a perfect job of replacing the tubing and capsule so that it works just like new! Reasonable price too. I'm back on the road again

!
Wally