For over twenty years now, RubiTrux has been making turnkey ready Jeep conversions. With Jeep Wrangler JKs becoming a more affordable trail ready rig, we decided to build a no compromises JK with 42s, ready for the trails, and built to take a beating. Read below for a full breakdown and our methodology.
Upgraded Suspension
One of our first hard choices was the suspension. With all the long arm options out there we had a hard time picking which kit would work best for us but we knew we wanted to preserve on road handling and have the adjustments necessary for off road crawling. We ended up choosing the TeraFlex Alpine RT Coilover kit with JK specific Falcon Coilovers. Long arms are used to reposition the mounting points and restore proper suspension geometry, all around reducing the stress on the suspension itself but also gave us a comfortable on road whether it was on the highway or in town. Combining the long arms with the Falcon coilovers helped too as they have an adjustable and tunable damping rate for adapting to any terrain.
Nothing is worse than breaking an axle shaft when trying to climb Hell’s Revenge in Moab, that’s why we went with Terra 60s with 5.38 Yukon gears to give us a bulletproof setup and that low end torque we need on the trails.
Tires and Wheels
For the tires we decided to go with the 42x13.5 Mickey Thompson Baja Boss’s. These tires are knobby, rugged, and made for climbing. The knobby outer edge gives you the grip you need when climbing a narrow gap or a rock wall and you won’t have to worry about smaller sharp rocks or rough edges puncturing them, making this the go to tire for any rocky or slick terrain.
We knew we wanted the reliability of beadlocks when off roading (even down to 5psi), with a trusted wheel brand. We decided to go with Methods machined 106 beadlock wheel. Their years of race experience gives us that piece of mind needed when rock crawling.
The Engine
Our no compromises JK wouldn’t be complete without a 6.4L V8 392 HEMI. The torque and power from this 392 is hard to beat, creating 485 horsepower and 475lb-ft of torque you can smoke tires even with 42s. There’s no better sound than a 392 roaring through the mountains! You’re bound to stand out and get loads of attention with this build, especially at any Jeep show.
