I am paddleing the same boat you are. Got my millermatic about 6 months ago and I also have a '49 cab. I have been playing around with mine a lot! Two of the bigest tips I can give you for sheet metal is one use a shielding gas co2 argon mix is the best, I use just co2 (tank is smaller and I have it on hand for my business). Two and the biggest thing is use several small spot welds. Dont try to run a bead. Then grind it down. And yes use the 23 wire lowest setting and think I set my speed at 55 or 60. Hope it helps grin


"Finish the thing, do it right the first time, and drive the S.O.B.!"

1949 Chevy half ton 3100 In a kazillion pieces
2000 GMC Serria 1500 SL 4x4