Turn Offroad SUPR-BR1 Portal Axles for Ford Bronco 2021+

Turn Offroad Portal Axles (Bronco 2021+)

SKU: TNO-SUPR-BR1

Write a Review

Designed specifically for 6th Gen Broncos, our portal system delivers lift at the axle, reduces drivetrain stress, and preserves OEM engineering - making it the ideal solution for daily drivers that wheel hard. Unlike suspension-only lifts with larger tires, Turn Offroad Portals provide torque reduction directly to the wheel, unlocking improved crawl ratios while reducing load on critical drivetrain components. The result is a smoother, stronger, longer-lasting system built for real-world abuse and long highway miles alike. Every detail - from material choice to sealing, lubrication, braking, and serviceability - has been obsessively engineered to create a portal axle that performs on the trail and behaves on the street. This is not just a lift. It’s a full drivetrain upgrade.

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

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 Bronco continues to operate like it did from the factory.
Tire Size Correction. Helps your Bronco properly account for larger tires, including corrected speedometer function, without the hassle of traditional regearing.

Notes:
** Designed for both 2-door and 4-door Bronco models (non-Raptor), Sasquatch or non-Sasquatch
*** Not compatible with Bronco Raptor models

Fits:
Ford Bronco 2 Door (2021+)
Ford Bronco 4 Door (2021+)

5 Star Customer Service

Price Match Guarantee

Not sure what you need?

Product Description