Porterbuilt Fabrication on Instagram: "Left this one at normal speed with no music so you can watch Jon’s technique and hear the pulse of that tig torch. This is the final pass on this 4-link bar. Like our control arms, all of our 4-link bar pivot tubes are tig welded. Make sure you wear long sleeves when you watch this one. We don’t want you to get any welding skin burn a week before Christmas. If you need some arm sleeves, we recommend the Miller Arc Armor welding sleeves or the Tillman Leathe