For that truck you would just get the OEM gauge, install it in the dash, plug it in and then have someone that has Paccar ESA software turn on the boost gauge in the CECU.
So teltek makes smart gauges now. They get the reading right from the ecm and they are digital. I have 4 different ones from them in my dash but will be adding couple more. I seem to have lost my transmission gauge when we moved lol SMART GAUGE BOOST Down side you probably have to use ESA to turn it on to read it. It's a 50/50 chance if it's already turned on or not.
