Portal Gear Kit for Jeep Wrangler JK Rubicon

2007–2018 Jeep Wrangler JK Rubicon

Bring 4.75 inches of usable clearance to the wheel hub and put 40-inch tires to work with 25% gear reduction. Developed specifically for the 2007–2018 Jeep Wrangler JK Rubicon, with a JL Rubicon system also in development.

Key Features

  • Adds 4.75 inches of clearance at the wheel hub so your Jeep gains usable height beneath critical drivetrain components without depending entirely on additional suspension lift.
  • Provides 25% gear reduction to help restore mechanical advantage and improve low-speed control with larger tires.
  • Distributes load through a four-gear design based on Turn Offroad’s proven portal architecture for balanced power transfer and durability.
  • Uses premium materials including CNC-machined aluminum housings and hardened steel internal components.
  • Developed specifically for the JK Rubicon with initial fitment focused on the 2007–2018 Jeep Wrangler JK Rubicon. A JL Rubicon version is also in development.
Development Note

Initial fitment is being developed for the 2007–2018 Jeep Wrangler JK Rubicon. Final specifications, included components, pricing and release timing will be announced before ordering opens. Development of a Jeep Wrangler JL Rubicon application is also underway.

$11,999.99
$11,999.99
In Production

Portal Gear Kit for Jeep Wrangler JK Rubicon

    Portal Lift Advantage

    Clearance Where It Matters

    Portals provide true axle clearance the right way—without piling on suspension height—so you keep factory geometry, a low center of gravity, and the kind of ride quality that makes portals worth it.

    4.75" More Ground Clearance

    Adds clearance where it matters most.

    No Excessive Suspension Height

    Achieve lift without stacking compromises.

    Better Stance and Geometry

    Keeps suspension geometry more controlled than a comparable suspension-only lift.

    How it Works

    The system moves torque multiplication to the wheel to help run larger tires while reducing drivetrain stress.

    Gear Reduction and Drivetrain Protection

    Portals multiply torque at the wheel. That helps you run larger tires while reducing load on the parts that see it first.

    OEM Ratios Stay in Place

    Keeps OEM gear ratios and factory engineering in place.

    Reduced Drivetrain Stress

    Designed to ease the load on your ring and pinion, transfer case, and driveshafts when running larger tires.

    Maintain Reliability

    By correcting the effects of larger tires, the rest of your Jeep continues to operate like it did from the factory.

    Tire Size Correction

    Helps your Jeep properly account for larger tires, including corrected speedometer function, without the hassle of traditional regearing.

    2021 - 2026 Ford Bronco Portals - Turn Offroad

    Jeep Portals are for the driver who wants true clearance and larger tire capability without giving up daily drivability.

    See Them Perform on The Trail

    If you've ever wanted to see what portal-equipped rigs can really do on the Rubicon, this is for you.

    Engineering Details

    Built to Drive Right. Built to Hold Up.

    Four-Gear Portal Box Design

    Turn Offroad uses a 4-gear design for maximum durability even under extreme load.

    • Balanced load distribution
    • Super strong straight cut gears
    • Engineered for longevity

    Materials and Construction

    Engineered with premium materials for long-term durability.

    • CNC-machined 7075 aluminum housings
    • 8620 Hardened steel gears
    • Steel inserts in mounting holes

    Lubrication and Reliability

    Fluid capacity and serviceability were designed for real use.

    • Holds 66% more oil (16.9 oz)
    • Improved lubrication and cooling
    • Fewer oil changes required
    • Easy-access drain and fill
    • Double-seal system engineered to stay leak-free

    Braking and Vehicle Systems

    Keep the systems you already rely on.

    • Retains factory ABS
    • Retains parking brakes
    • J-hook front rotors for improved stopping power
    • Brake line extensions included
    • Electrical extensions included
    • Fitment & Compatibility
    • Performance & Capability
    • Driving Feel & Factory Features
    • Engineering & Materials
    • Availability & Pricing
    These portals are designed specifically for the 2007-2018 Jeep JK Rubicon. Turn Offroad is currently working on JL Rubicon portals as well.
    These portals are designed specifically for the 2007-2018 Jeep JK Rubicon
    Turn Offroad Jeep Wrangler Portals add approximately 4.75 inches of ground clearance at the axle, significantly improving obstacle clearance and off-road capability.
    The portal system provides a 25% gear reduction, helping improve low-speed control, torque delivery, and overall drivability with larger tires.
    Turn Offroad Jeep Wrangler Portals are designed to support tire sizes up to 40-inches, depending on wheel setup and intended vehicle use.
    Yes, the system is engineered to retain factory suspension geometry, helping preserve on-road comfort, handling, and predictable driving characteristics.
    Yes, Turn Offroad Portals are designed to retain factory ABS functionality and the OEM parking brake system.
    The 4-gear portal box design is built for increased strength and durability. By distributing load across four gears instead of three, it reduces stress on individual components and improves long-term reliability under heavy use and off-road conditions.
    The portal housings are CNC-machined from 7075 aluminum and paired with hardened 8620 steel gear sets. Steel thread inserts are used in all mounting points for added durability and strength in high-load applications.
    Price and availability will display near the Add to Cart button at the top of the product page.

    What's Included

    Each portal kit is delivered as a complete, engineered system — everything needed for installation and operation.
    • Complete front and rear portal assemblies
    • Brake line extensions
    • Breather + hose, manifold, & fittings
    • Wiring extensions for electric parking brake
    • Inner axle seals
    • Windows for portals
    • Front axle nuts
    • Rear installation hardware
    • 30mm socket & 10mm allen