Gauges
 

What gauge goes in the little hole next to the stearing column on the right hand side, mine is blank. Thanks

Re: Gauges
 

Of course anything you want, but more often than not I see the vacuum gauge there. I believe this was an option just like the tachometer in the center position, someone correct me if I'm wrong.:chevy:

Re: Gauges
 

in a 10 - 30 series truck, there was no guage there at all. In the 40 - 90 series, trucks with air brakes had an air guage, and trucks with hyd brakes had an avalible vacuum gauge in that location.