If that was being sold in Los Angeles instead of Stockton it would for sure have the odometer run back. If he drove that to LA, with as clean as it looks, rolled the speedometer back and no one would question it. Every swap meet in the city has a guy that will do it for cheap. Even on modern cars. I'm surprised it doesn't just have the gauge cluster swapped.
I refuse to look for used cars in LA for this very reason. Out of maybe 20 Carfaxes I ran over a two year period - only one didn't have odometer fraud. Which means it's cheap and easy to do. And no one is prosecuting it.