I’d use some Turtle Wax rubbing compound first followed with an application of the same brand old school paste wax. You’ll be surprised how nice that dark blue paint turns out.
Nice truck by the way.
Chuck 1950 Chevy 1/2 ton (all original) 1951 Chevy 1/2 ton (future streetrod) 1941 Chevy coupe 1938 Chevy coupe streetrod