A lot of problems come from neglect and that applies to marriages, friendships, buildings and autos. My 300000 08 2500 after 11 years has only 1 problem and that is the rear wheel fender skirt area that rusts due to the pinch joint defect. That is the ONLY rust area on that truck. Bought a SET of repair units that replace that whole defective area and once they are traced and the existing rusty panels cut out, I can get at the problem that caused the rust. After that there will be no more problem, just like the front end aftermarket replacement with all joints greaseable by fittings.
Been watching the frame and note rust that my regular winter underbody flushing has not prevented. Attack plan will be a frame flush each fall and spring before and after winter salt season. I will use hydraulic oil which will not damage other material components. I am sure this will stop the surface rust dead and prevent deep frame rust causing frame pitting and destruction. All that entails is 16 hours a year. I presuppose this technique efficacy on the old timers whose trucks have lasted well over 20 years and who sprayed them with oil twice a year.
More proof? Sitting in my yard is a 1979 Chev van. I came into possession from my father who deceased 7 years ago when it went to one of my younger brothers. He let it sit in a gravel driveway for that 7 years starting it occasionally and gave it to me last fall. My mechanic neighbor with a shop put it on the hoist to inspect it and was shocked to see NO RUST of any consequence, body intact, and easily certifiable. It started easily with a new battery. It has 79000 MILES on it and my son insists on converting to 4WD. I have seen vans with these conversions. The auto 3 speed will be ditched and a standard installed, under direction of GM whiz who sold us the parts for the old army truck auto trans to standard conversion. He will sell us the necessary parts for the trans replacement and we will buy an after market 4WD conversion to be installed by my son with the help and direction of master mechanical GM neighbor. The secret of the intact body and frame on that 1979 Chev van 305 cu in? MY FATHER OILED IT TWICE A YEAR AS I WILL DO TO MY 08 DOGE 2500. That van has low mileage and 40 YEARS old. A stitch in time saves 9 applies to everything.
BTW, read that the Dodge 3500 is the most unreliable truck for 2019. hmmm