They sell new plates with the printing but as long as the stamped serial number is legible that is all law enforcement cares about,
When I moved from Texas to Washington the WSP inspector took his knife and scraped about six coats of paint off the plate where the serial number is and read the stamped number and that is all that counted.
When you look at your title figure out if the vin is the engine serial number or the body tag serial number.
Info here on Engine serial numbers
https://chevy.oldcarmanualproject.com/models/engine.htm
A few of the door post serial number aka vin tag number decoders are =
https://www.gregwapling.com/hotrod/c...l-numbers.html
This is the vehicle information kit for 1948 Trucks from the GM heritage center, it answers a lot of stock truck questions
https://www.gm.com/content/dam/compa...olet-Truck.pdf
A stock 48 door post tag should be held on with two clutch head screws, do not loose those screws as you need those to be correct.
There is a guy on Ebay who will sell you the tag and stamp your serial number in it but make positive that the vin on the title is the door post number and not the engine number. Nothing is more bogus than an engine serial number stamped on a brand new shiny door post tag.