Re: 2006 Ranger rusting bad
That's just surface rust, don't worry about it. Too late to get it undercoated or rustproofed though, or you'll just seal that stuff in. I did get my Sport Trac undercoated. Both Rangers I had before did get rust pretty quickly on the lower seam of the tailgate and doors, I had it fixed under warranty.
'05 Sport Trac 4x4, L/S, torsion lift, extended shackles, 265's
'03 Taurus wagon, Silverstars, Yoko TRZ's
If you give a man a fish, he'll eat for a day. If you teach a man to fish, he'll sit in a boat and drink beer all day.