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Premature fender rust

2K views 13 replies 9 participants last post by  MBTAgrunt  
#1 ·
My 16 cc sv has this rust coming through from the back. There's a supporting piece of sheet metal spot welded behind. Is this normal for a truck that's 8 years old & what's the best course of action?
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#3 ·
She's paid off with only 92k so If other to keep it a couple more years. Just frustrating I have to pay a body shop now. Other side shows zero signs of corrosion. I also had a spot of my bed that was rusting under the factory before liner too. I keep it clean you'd think I park the effin thing in the ocean ffs.
 
#4 ·
The rust is coming from the backside. You’d have to remove the spotwelded panel and grind off the rust then treat the area with some kind of rust inhibitor. Then re-spot weld back on and paint the area. Then you’d have to do the same on the side you can see plus a little bit of body filler, primer paint then re-paint the fender. I’ve done this on my old Camaro more than a few times. It’s the only way to stop the rust.