The rusty ram

A customer has a 98. Diesel.
Body is still solid,he sprays fluid film into doors every fall. And does something in the box wheelwells too.
I sprayed some atf all in the inner rockers and the cab before I put the new ones back on. Hopefully it will keep it from doing it again. As many miles this truck has I think these repairs will do it till its end lol I have a 5.9 mag I plan to put in it if the 5.2 ever goes.