i have a 55 second series truck just got new floor pans , step wells and door pillars and outer cab corners whats the best way to weld them in i have a mig its a cambell hausfeld wire fed mig runs on gas but was told if you use flux core wire its does the same differnce im goingt o use 0.35 flux core wire is this accetable and do you just mig from corner to corner or a corner then jump around to get a better result???????? i want to do somewhat of a nice job ?????