Homegrown 4X4 Van Conversions with The Swim Shop

In this episode, host Beau Wigington visits Justin and Seth Williams of SwimShop 4x4 to unpack how they convert GM G-Series vans into capable four-wheel-drive rigs, and the MIG welding habits that keep those projects rolling.Key Topics CoveredWhy van conversions? The rock-n-roll roots, “rolling living room” ethos, and first builds that sparked a business.Unibody reality check: why G-Series vans aren’t body-on-frame, and what that changes in your fab plan.The jig story: cutting a donor van’s underbody, flipping it, and welding it to a table to build 126+ kits consistently.Bolt-on vs weld-on: using existing van holes, minimizing welds to two key pieces, and where welding is still essential.MIG setup in the shop: clean metal, penetration, heat/wire adjustments, and why “don’t zoom in” can still be structurally sound.Parts sourcing workflow: diffs, transfer cases, running gear—how junkyards and Marketplace make the puzzle come together.Square-body compatibility: designing around ¾-ton Suburban geometry so catalog parts actually fit.Learning by doing: confidence, mistakes, and reading the puddle—why pinstripers make quick MIG learners.Community + momentum: YouTube documentation, events, and how niche builds find their people.Working with family: keeping shared interests, sharing space, and growing a shop together.Memorable Quotes“It’s a rolling living room… you can do wild paint, shag carpet—I had to have a van.”“We thought they had frames… then we realized it’s a unibody. Whole different animal.”“We cut the van’s underbody out, flipped it, welded it to a table—that’s our jig.”“Everything’s bolt-in using factory holes—only two pieces need welding.”“With MIG: clean metal, good penetration. When it clicked, it clicked.”“Just because it’s not pretty doesn’t mean it won’t hold—don’t zoom in.”“Anything that bolts onto a square-body truck fits our kit.”Save 20% On Related American Welding Program Courses Use code WELD20 at checkout for eligible courses - https://foxly.link/9T3dtcConnect with The Swim Shop 4x4Instagram - @theswimshop4x4 https://www.instagram.com/theswimshop4x4/ YouTube - https://www.youtube.com/@theswimshop4x4 Website - https://www.theswimshop4x4.com/   Connect With Beau Wigington- Instagram: @beaudiditwelding https://www.instagram.com/beaudiditwelding - LinkedIn: https://www.linkedin.com/in/beauwigington - E-mail: [email protected]