With modern 265/75R-16 tires on 2000 GMC chrome wheels, my '52 does better in the snow on 1-wheel drive than my Camaro does with studded snow tires and posi.
In Colorado, until about 5 years ago, they used gravel on the roads. No rust, but always cracked windshields. Then they brought in magnesium chloride, which the DOT "claimed" would not attack metal. Last year, they admitted that it actually does attack metal aggressively, and my Camaro daily driver is beginning to show it where the rubber moulding around the windshield is supposed to seal with the sheetmetal. All it does is trap the mag-chloride in there where you can't wash it out.
A friend of mine is thinking about parting out his '68 GMC 3/4 ton. He's putting the 427 Vette motor up for sale and has offered me the 4x4 out of it, which I'm considering seriously. The reason? His Jimmy runs great, but the body is rusted out so bad that it's almost hopeless to try to restore.