[72SB]

DMV, or AAA, is going to require a certified weight document. If truck runs you can trailer it to a certified place, pull it off trailer to scale then put it back on trailer. Some truck stops the CHP will do it but IMHO use a private one like a recycling place.

Place I used was in Northridge/Chatsworth, CA

Maybe a moble VIN guy can do it if he has certification to do it using a scale under each tire then add the total if that is a service they can provide. You would have to ask

You will also have to pay for commercial plates unless you have a camper shell on truck...yeah its a CA thing