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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jun 2007 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2007 Posts: 48 | I'll be welding in some new floorpans on Dad's 51 3100. Which size wire should I use on the mig- .023 or .030? Would it make a difference as far as finish or anything? Thanks. | | | | | Joined: Dec 2004 Posts: 19 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2004 Posts: 19 | .023 is the way to go for body work. less weld deposit to grind. If your fabricating a trailer the .030 is better it will carry more Amps and deposit a weld faster | | | | | Joined: Jun 2007 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2007 Posts: 48 | Thanks! I was kind of figuring the same, but thought I might be told that it was all a matter of feed speed and amperage. I appreciate it... | | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | My first experience doing floor pans wasn't so neat and I blew holes thru the metal.  Oh,the agony of grinding and filling. :mad: Hope yours goes much smoother. 
Drew
| | | | | Joined: May 2007 Posts: 36 Wrench Fetcher | | Wrench Fetcher Joined: May 2007 Posts: 36 | I use .023 on thin like body pannels but floor pans and structure i use .035.But i punch holes around the out side of the pans so i can spot weld and grind them off. you can't even tell after you are done. | | |
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