Jeep JK Wrangler Baja Upgrade - March 2023

Overview

While Jeeps are a lot of fun stock, just a few parts can significantly improve their off-roading capabilities. In this project, I fitted a variety of aftermarket components to a JK Wrangler 2-door, with the goal of driving it to Baja California and taking it on technical trails.

Each upgrade was done with a specific goal in mind, from increasing articulation to adding security.

First, I installed a 2" lift kit from Zone Offroad, along with upgraded FOX Adventure shocks. The lift kit increases the Jeep's ground clearance by 2" and also increases the stroke of the shocks, allowing the suspension system to articulate more. This means that the tires can flex to maintain traction in more advanced terrain. This may sound complicated, but I’ve described it in detail with pictures in the associated blog post.

Next, I added aftermarket wheels and tires. By upgrading from 7" stock wheels to 8.5" Method MR703 wheels with the same offset, I increased the Jeep's track width. This improves stability, allowing it to lean to greater angles without tipping. Upgrading the tires from 30" stock to 33" Falken Wildpeak A/Ts also had several benefits. The increased overall height further improved ground clearance. Additionally, the larger-diameter tires are off-road capable and optimized to be aired down to increase their contact patch.

To improve the Wrangler's approach and departure angles, I installed aftermarket bumpers. I fitted a Barricade Adventure Series bumper to the front, which features a winch recess and mounting point, two recovery D-rings, and increases the approach angle by over 1 degree. This allows the Jeep to climb steeper obstacles before making front bumper contact. This upgrade also required relocating the fog lights, which I wired in. I followed this with an ARB rear bumper. The ARB bumper is sleek and low profile, allowing clearance for the larger 33" tires. Integrated recovery points help keep things quiet by eliminating rattling. The ARB rear bumper also improves the Jeep's departure angle, allowing it to descend from obstacles at steeper angles without making rear bumper contact.

Next, I finished the build with low-profile fender flares from Bushwacker. Low-profile fenders give the tires more room to move, allowing for greater suspension flex. This helps the Jeep crawl over more technical terrain while maintaining tire contact.

Low-profile rock rails were also essential. By positioning the side steps closer to the body, additional clearance is created, improving the breakover angle. Additionally, these aftermarket steps are designed as rock rails, meaning they can withstand tough off-roading. Unlike the stock rails, if the Jeep slams down onto a rock or trail obstacle, these rails will hold up and protect the body.

Lastly, a lockable gas cap provides peace of mind. The Jeep is destined for Baja California and may sit unsupervised for long periods, so security is important.

What I Learned

• Installing and aligning suspension components like track bars, shocks, etc.
• Aftermarket bumper mounting and reinfocement
• Measuring breakover, approach, and departure angles
• Considering and predicting handling effects with aftermarket components