This is old Funton again, earlier GMCdp was having trouble Mig welding so a number of us chimed in on what he might try. I was so happy that I was able to weld on my back corners without having gobs of holes. After about 400 tacks I got them welded in and looking from the back side saw that the penetration was not that good all the time. Now I'm going back and welding the corners on the inside of the cab. I'm thinking that when I grind off the weld on the outside I need to make sure there is plenty of metal to hold. So GMCdp if you are still out there,be advised that I'm a novice and don't feel like I'm half as good a welder as I did when I responded before. This mig welding can make me feel good some days and bad some days. Now if there is a REAL welder out there I have a question---How particular do I have to be on this backside welding? Thanks to all that respond.
