# Homegrown 4X4 Van Conversions with The Swim Shop

Page: https://stenobird.com/podcast/weld-3832015/homegrown-4x4-van-conversions-with-the-swim-shop
Text version: https://stenobird.com/podcast/weld-3832015/homegrown-4x4-van-conversions-with-the-swim-shop.md
Podcast: [WELD](https://stenobird.com/podcast/weld-3832015)
Published: 2025-12-01T10:00:00+00:00
Episode link: https://podcasters.spotify.com/pod/show/welddotcom/episodes/Homegrown-4X4-Van-Conversions-with-The-Swim-Shop-e38daou
Audio file: https://anchor.fm/s/56a6df3c/podcast/play/108488926/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2025-10-25%2F413156178-44100-2-4f941ac029e8d.mp3
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JSON: https://stenobird.com/v1/public/podcasts/weld-3832015/episodes/homegrown-4x4-van-conversions-with-the-swim-shop
Duration seconds: 1032

## Resource

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 Covered Why 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 m…

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## Transcript

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