I was doing some corrosion control and found this in the drip rail. I think this would explain why I get a good amount of water inside when it rains. Especially with the storms socal got over Christmas.



What can I use to get down inside there to remove rust and what kind of filler can be used that can also be painted?

 

65 views so far and nobody has any tips or advice?? I know plenty of guys here have done body work and would have something to say.

 

I had the same issue, used a wire wheel on a 4.5 grinder, very carefully. After grinding I painted with Duplicolor and clear coated. THEN went over with a clear silicone type roof sealent "through the roof" its called, maybe not the best way but looks good, and stoped that danged water.