Why does Dodge go cheap with their steel?

Chevy trucks rust so bad on the rockers and wheel wells. Trust me, guys at work have fairly new ones and rust rust rust. Another co-worker bought a brand new Ford in 2010, and it has rusted wheel wells. Here is my '01 Ram, 236,*** miles and no rust. Frame is black, like new! not brown. Yes, I live in a rust belt state.

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