What happened to your truck took place over several years in the age of road salt, NOW DAY'S states like Wisconsin are using LIQUID SALT BRINE that is sprayed on the road that does not have to dissolve BEFORE it goes to work on your truck, its instantaneous and seems to also have some sort of BINDER in it that makes it STICK to your ride , wait tell you see what that CHIT does to your Vehicles , Anyway we drove the other day from Minocqua / Woodruff to Rhinelander on Hwy 47 and the (28 miles) of road was DRY out in the country even with the wind blowing snow across the road, But it did not stick to the road being as the road was left UNTREATED and the snow just blew across , as soon as we got into Rhinelander where the roads ARE TREATED the snow stuck and it was a SLOPPY BRINEY MESS from one end of town to the other AND SLICK also, being as there's no place to push snow in town they elect to MELT IT, RUNNING ALL THE MILLION'S OF TON'S OF SALT / BRINE into our lake's, river's, stream's and ground water, Water that we all drink btw, I'm surprised the up in your face about everything else under the sun EPA has not addressed this issue AND it is an issue , QUOTE, (Now imagine not being able to drink your water. That's a problem parts of Madison Wisconsin is having after road salt contaminated city water.
Salt used to treat roads can seep into the ground and runoff into reservoirs. It then gets mixed in with drinking water. For some people, the water can become dangerous to drink.
"We're mostly concerned about the sodium because of folks that have high blood pressure (hypertension), that are on a sodium limited diet. That could be a concern with the drinking water if the concentrations get too high," said Kreitlow , AND then locally in Minocqua / Woodruff there is this news article from TV channel 12 ,
https://www.wjfw.com/stories.html?sku=20180307172953 .