IRURI Journal isn't about products.

It's about the observations that eventually became products.
Some stayed as sketches.
Some became prototypes.
A few became something worth building.

The Blind Spot Matrix
On a steep climb, your eyes move before anything else. Before the tires lose traction, your head has already leaned toward the windshield, searching for a clear line. You need to see exactly where that front tire is about to...
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The Blind Spot Matrix
The First Five Seconds
Every Bronco build starts with something obvious. Tires. Suspension. Lighting. Winches. It usually takes months before anyone notices the one part they touch every single drive. IRURI defines **First Contact** as the first structural point where the driver's body transfers...
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The First Five Seconds
The Plateau Test
IRURI JOURNAL ENGINEERING & DESIGN The Plateau Test 1,500 Miles of Tibetan Trails, Thin Air, and a Wrangler 4xe That Had to Work. BY RENDY JOURNAL | JULY 2026 ISSUE 12 Eight days.More than 1,500 miles.From Chengdu to Lhasa.This wasn't...
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The Plateau Test
The Solid Anchor
IRURI JOURNAL ENGINEERING & DESIGN The Solid Anchor Balancing Load Paths and Aerodynamic Profiles on the Land Cruiser LC250. BY RENDY JOURNAL | JUNE 2026 ISSUE 11 This article is for Land Cruiser owners who need consistent access to their...
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The Solid Anchor
The Vertical Step
IRURI JOURNAL ENGINEERING & DESIGN The Vertical Step Balancing Hinge Load and Low-Profile Roof Access on a Jeep Wrangler. BY RENDY JOURNAL | JUNE 2026 ISSUE 10 This article is for Wrangler owners who need consistent access to their roof...
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The Vertical Step
The Changing Roof
IRURI JOURNAL ENGINEERING & DESIGN The Changing Roof How a Jeep Wrangler Roof Changes Over Time. BY RENDY JOURNAL | JUNE 2026 ISSUE 08 This article is for Wrangler owners whose setup keeps changing with every trip. Quick Answers Is...
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The Changing Roof
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