Blasting will always get to the parts a disc cannot reach,but I'm assuming your truck is a Texas truck,so the rust shouldn't be too horrendous?
I'm using discs on mine simply because there's no-one locally I can trust(or afford) to blast mine.
I've stripped mine with discs and hand sanding and am using POR Metal Ready to stabilise the remaining bare metal.
I'm top coating with POR-15 paint and have been really pleased with the results.JMO

Last edited by jockbolter50; 03/11/2010 8:18 AM.
1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.