In the past from 1996-2010 all of our frames have been welded, generally using 6061-T6 as the base material. But we also would have our frames sent out for annealing and heat treat post welding because of the HAZ reducing the welded areas back down to T0... This added much delay in getting a rolling chassis up.
After switching to bolted and riveted construction we haven't looked back, mind you we had our frames welded by aerospace welders and we still popped welds in the pre bumper era.........
