Currently there are gauges with a connection in at the bottom and a trap type but what we use a lot of the times is one with a connector at the back like so..
Not sure what you are describing? Back of your Pick-up Truck? 🙂
For crying out loud, LOL I feel like a dummy, I was thinking Metal Gauges, I was helping someone on CAM here at work.
See my attached picture's to get what you need. You need to change what I highlighted to get what you need.
I just also noticed you want probe out the back. I need more coffee. Let me see if I can get you something.
I tried to post 3 that I made real quickly for you. But Autodesk will not allow *.itm and other certain type files to upload to site. If you read about the cadmep command "convert3dmodel" you can find a 3d Gauge online, Download and Convert it. You can also send me your email and I will email the 3 I made for you.
LOL, thanks, Nick is a good guy, just he is busy guy! Looks like Nick owe's me a Pint!