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FourWheeler Show 1.1: Custom Tube Chassis LJ Buggy Frame

Posted in News on October 10, 2019
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The FourWheeler show is now available on the MotorTrend App, the only subscription streaming service dedicated entirely to the motoring world. Sign up for a free trial to start binge watching right now!

FourWheeler Show Description: If it has wheels and goes off road, Ian Johnson will work on it! In FourWheeler we work on everything from upgrading your daily driving Jeep, to building a custom tube chassis rock crawler. Ian takes you along for the "do it yourself" ride as we tackle everything from simple "bolt-ons" to full on fabrication. Find it here!

Season 1, Episode 1: Custom LJ Buggy-Part 1 - Ian begins assembly of a custom LJ chassis and builds a full Jeep out of a pile of metal tubes. Then he adds front and rear axles with cut-to-length control arms, and finishes off the build with coil-over suspension.

It's safe to say that in the very first episode of FourWheeler (Custom LJ Buggy-Part 1), Ian Johnson takes on one heck of a full-fabrication project—a custom tube chassis Jeep LJ. He doesn't start with a project LJ (which he considers to be the unicorn of Jeeps and one of the best platforms) and slap on some parts. No, he builds one from the ground-up, starting with a massive pile of tubing and welding it all together to begin creating an off-road machine that will look like an LJ but have an LS powerplant and tons of other fun modifications.

The pile of square and round tubing strewn across his garage floor is actually a DIY chassis tube kit package from Goat Built, cut to perfectly replicate the dimensions of an LJ and accept LJ parts. The floor structure is square tubing, which makes it easier to put in floor boards, and the rest is 1 -inch round tube. The chassis kit comes with jigs to make it perfectly square, and unless it's movie magic, the whole thing fits together like a perfectly formed jigsaw puzzle. Ian lays down some sick welding beads as we see the heap of metal slowly resemble an LJ.

After the frame and front/rear four-link subframe are tacked together, Ian whips up some custom control arms out of 2-inch ( -inch wall) DOM tubing and continues by perfecting the fabricated 9-inch axles. Lastly, he attaches some race-inspired shocks that'll allow the LJ to handle harsh terrain with ease.

With the chassis tacked together and suspension mocked, Ian finishes the episode by rolling out some 42-inch tires on 20-inch wheels because, after all, you "can't lose with 42s."

Stay tuned as this monster comes to life.

 

 

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