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The metal sandwiched together on the bottom inside of the rocker panels, some of it is .060 and .040 thick, so when you're working different panels and braces, be aware you have different thickness's of sheet metal. Also the rocker panels are galvanized, be aware of the fumes when welding or grinding, galvanized fumes are dangerous.
if i am remembering correctly most of the sheetmetal of the day was a 18 gauge steel not the flimsy 22 gauge used in most new cars but you might want to ask some one like year one on what they use in comparrison to original....but honestly if you are making the panels...make sure you put in the re enforcement roll beads otherwise streangth may become an issue on larger panels
The metal sandwiched together on the bottom inside of the rocker panels, some of it is .060 and .040 thick, so when you're working different panels and braces, be aware you have different thickness's of sheet metal. Also the rocker panels are galvanized, be aware of the fumes when welding or grinding, galvanized fumes are dangerous.
When they "deep draw" sheet metal to make body parts by stamping them in between big dies, sometimes the same part will have a variety of thicknesses in it, depending on how stretched it is. It seems like most of the older American car bodies are 18, 19, or 20 gauge, but sometimes the same part can measure more like 20 gauge in some areas and ...
After researching I remember 18 gauge was the choice thickness, is this correct? I called one of the local metal warehouses and they said they only carry 18ga in cold rolled. Do I need cold rolled or hot rolled? Does it matter? I was quoted about $120 for a 4x8 sheet does this sound right? Thanks. I am a body work noob.
The dynacorns fit great,the drains were punched out and they where edp coated.The only draw back was the gauge thickness but they were still thicker then the metal is was welding to. 396 ci (60 over) Oval port heads (215) Ported
With all due respect, there's nothing thicker than 18 gauge on the car (as far as sheet metal), and even that's a stretch. The closest commercial gauge thickness to what's on our body panels is 19 gauge (.042" thick), but since it's not as readily available I used 18 gauge (.048" thick) to patch my door skin this past weekend.
Make sure its not galvanized steel. I think that the plain sheet metal they have on the aisle at Lowes and Home Depot is called "Weld Steel". The galvanized steel is harder to make a good weld and the zinc in the smoke is toxic. Rick
From about the mid 30's to the late 70's the Big 3 used 19 gauge sheet metal on most exterior panels like fenders and quarter panels. 19 gauge is roughly about .042. They also used what is called a Draw quality steel which is softer then the CRS or Cold Rolled Steel you can buy at the metal supplier.
If you are a total rookie at welding, I would suggest getting some heavier metal as well maybe 18 or 16 gauge and practice on that first. The thinner the the metal the tougher it is to weld. Once you feel comfortable at the thicker metal move to the thinner metal and get comfortable there before welding the car.