Unknown material found - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cheford · 08-03-2008, 07:22 PM

Hi, I just completed sandblasting a frame from a 72 c10 and where the rear coil springs mount to the frame there is some rust through. I thought I could just build the few holes with some weld but what I thought was metal is not. Does anyone know what this filler material is between the frame and spring perch, a magnet will stick to it and it's very brittle. I've repaired the holes by welding a 1/8th thick plate over the spring perch but I'm now concerned about this filler material that is falling out, hope I'm making sense.

08-03-2008, 07:22 PM	#1
cheford Registered User Join Date: Apr 2007 Location: ontario Posts: 247	Unknown material found Hi, I just completed sandblasting a frame from a 72 c10 and where the rear coil springs mount to the frame there is some rust through. I thought I could just build the few holes with some weld but what I thought was metal is not. Does anyone know what this filler material is between the frame and spring perch, a magnet will stick to it and it's very brittle. I've repaired the holes by welding a 1/8th thick plate over the spring perch but I'm now concerned about this filler material that is falling out, hope I'm making sense. Last edited by cheford; 08-03-2008 at 07:23 PM.



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