Sandblasting provides an excellent surface for priming. You will want to use an epoxy primer over bare metal. I also use a Harbor Freight gun for all my priming. Epoxy Primer doesn't have UV protection so it will need to be painted. I used Advantage brand Hot Rod Black for my chassis, it has a nice semi-gloss sheen to it.


'66 C60 body, '97 C6500 chassis, '07 LBZ Duramax with Allison 1000
https://photos.app.goo.gl/cxwv1C6Ay2oxYH7u7