I live in sj.... my truck was on a large blueberry farm and saw very little on road use. Bought it saying wow that's the cleanest frame I have ever seen around here...... drove it 3 winters in our nice salt. Did the SAS swap and moved to the back to do the 63 swap...... hahaha joke was on me apparently the frame was full of sand from the farm which held the salt mist from the road. Rotted it almost as bad. All I can say is new frame.