SuperPro TRC561 Front Lower Control Arm Set 2011-2020 Mazda BT-50 UP UR 2009-2019 Ford Ranger PX

The SuperPro TRC561 is a front lower control arm set built for the 2011 through 2020 Mazda BT-50 (UP and UR series) and the 2009 through 2019 Ford Ranger PX I and PX II, covering all available drivetrains on both platforms. This kit delivers two complete left and right lower control arm assemblies with SuperPro polyurethane bushings and up-rated ball joints pre-installed from the factory. This is not a bushing-only kit or a ball joint replacement kit. It is a complete drop-in control arm solution that replaces the entire lower arm assembly on both sides in a single purchase. For BT-50 and Ranger PX owners dealing with worn ball joints, failed OEM bushings, or seized camber pins, this is the clean, permanent fix that eliminates the compromises of trying to rebuild a corroded factory arm.

Why This Kit Beats Rebuilding the Factory Arms

The front lower control arms on the Mazda BT-50 and Ford Ranger PX are known for a specific failure pattern: the OEM rubber inner bushings soften and crack under the demands of towing and off-road use, and the lower ball joints wear faster than expected on these platforms due to the high vertical loads generated by the independent front suspension under load. Attempting to press new bushings and ball joints into a factory arm that has already seen corrosion, impact loading, and heat cycling is a labor-intensive process with no guarantee of correct press fit or alignment retention. The SuperPro TRC561 sidesteps that entire problem. Each arm ships as a complete assembly with polyurethane bushings and up-rated ball joints already installed, torqued, and ready to bolt directly onto the factory subframe and knuckle. The result is a full geometry restoration in a single service event.

SuperPro's polyurethane inner bushings resist the heat cycling, ozone, and compression fatigue that destroy OEM rubber. The up-rated ball joints exceed OEM load ratings and are designed to provide longer service life under the towing and off-road duty cycles these trucks see. This is the same repair and upgrade solution used by 4WD workshops across Australia, the UK, and the US on lifted and stock BT-50 and Ranger PX builds.

Complete Arm Assemblies, Pre-Built and Ready to Install

Each kit includes two fully assembled control arms: one left and one right. The SuperPro polyurethane bushings are pressed and retained in the inner pivot locations of each arm at the factory. The up-rated ball joints are installed and torqued into the arm's outer knuckle pivot. All that is required at installation is unbolting the factory arms, dropping in the new assemblies, and torquing to OEM specification. A wheel alignment is required after installation, as with any control arm replacement on an independent front suspension.

Fitment: 2011-2020 Mazda BT-50 and 2009-2019 Ford Ranger PX

The SuperPro TRC561 fits the Mazda BT-50 UP series (2011 through 2015) and BT-50 UR series (2015 through 2020) in all trim levels and drivetrain configurations, as well as the Ford Ranger PX I (T6) from 2009 through 2015 and Ford Ranger PX II from 2015 through 2019 in both 2WD and 4WD variants. The BT-50 UP/UR and Ford Ranger PX share the same front suspension architecture and lower control arm specification on these model years. Confirm your model series and drivetrain before ordering.

Full Specifications

What Is Included

• 1x front lower left control arm assembly (SuperPro polyurethane bushings and up-rated ball joint pre-installed)
• 1x front lower right control arm assembly (SuperPro polyurethane bushings and up-rated ball joint pre-installed)
• Installation hardware (split pin and fasteners)

Installation Overview

This is a direct bolt-in replacement for the factory front lower control arms. Both assemblies arrive fully pre-built with bushings and ball joints installed. No pressing, no bench assembly, and no special tools beyond standard workshop equipment are required. A wheel alignment is required after installation.

• Lift and safely support the vehicle, remove front wheels
• Disconnect the front sway bar end link from the lower arm if applicable
• Remove the lower ball joint pinch bolt or nut at the steering knuckle
• Remove the inner pivot bolts securing the lower control arm to the subframe
• Remove the factory arm from the vehicle
• Install the new assembly using factory bolt locations, torque to OEM specification
• Reconnect ball joint and sway bar end link, torque all fasteners
• Complete a full 4-wheel alignment after installation before returning the vehicle to service

About SuperPro

SuperPro is an Australian suspension component manufacturer with over 30 years of engineering experience specializing in vehicle-specific polyurethane bushings and suspension assemblies. The TRC series complete control arm kits represent SuperPro's approach to solving the compounding failure modes of OEM lower arms: worn bushings, failed ball joints, and corroded hardware addressed in a single pre-built assembly. SuperPro products are used by 4WD workshops, suspension specialists, and performance shops across Australia, the United Kingdom, and North America on both stock and lifted applications.

Frequently Asked Questions

What does the SuperPro TRC561 fit?
This kit fits the Mazda BT-50 UP series (2011 through 2015) and BT-50 UR series (2015 through 2020) in all trims and drivetrains, as well as the Ford Ranger PX I (2009 through 2015) and Ford Ranger PX II (2015 through 2019) in 2WD and 4WD configurations with 2.2 TDCi and 3.2 TDCi engines.

Does this kit fit the Ford Ranger PX?
Yes. The TRC561 fits the Ford Ranger PX I (T6) from 2009 through 2015 and the Ford Ranger PX II from 2015 through 2019, covering both 2WD and 4WD drivetrains. The Mazda BT-50 UP/UR and Ford Ranger PX share the same front suspension architecture on these model years.

Are the bushings and ball joints already installed?
Yes. Each arm arrives fully assembled with SuperPro polyurethane bushings pressed into the inner pivots and up-rated ball joints installed at the outer knuckle end. No additional assembly is required before installation.

Does this kit work on a lifted BT-50 or Ranger PX?
The TRC561 uses OEM-equivalent arm geometry designed for stock ride height applications. For vehicles with significant lift (2 inches or more), SuperPro offers upper control arm kits with adjustable ball joints designed to correct caster and camber on lifted platforms. Consult a qualified 4WD suspension specialist if your vehicle has been lifted before ordering lower control arms.

What is the warranty coverage?
The SuperPro polyurethane bushings carry a Lifetime Warranty for the original purchaser with no mileage restrictions. The ball joints, arm metal, and hardware carry a 3-year or 36,000-mile warranty. All warranty claims require proof of purchase from an authorized SuperPro dealer.

Will installing aftermarket control arms void my factory warranty?
No. Under the Magnuson-Moss Warranty Act, an automaker cannot void your factory warranty simply because you installed an aftermarket suspension component. The manufacturer would need to prove the part directly caused the specific failure being claimed before denying coverage.

Do I need a wheel alignment after installation?
Yes. A full 4-wheel alignment is required after any lower control arm replacement on an independent front suspension. These arms use OEM geometry, so they do not inherently alter alignment angles, but any control arm swap disturbs the existing alignment settings and must be re-set to specification before the vehicle is returned to service.

How long does installation take?
A front lower control arm replacement on the Mazda BT-50 or Ford Ranger PX typically takes 2 to 3 hours per side at a professional workshop, plus time for alignment. Because the assemblies arrive pre-built, no time is lost on bushing pressing or ball joint installation at the bench.

How many control arms are in this kit?
The kit includes 2 complete control arm assemblies: one left and one right. It covers both front lower arm positions in a single purchase. SuperPro recommends replacing both arms together to maintain correct suspension geometry.

How does this compare to the factory Mazda BT-50 lower control arms?
The factory arms use OEM rubber inner bushings and standard-rated ball joints. This kit replaces those with SuperPro polyurethane bushings that resist heat, ozone, and compression fatigue, paired with up-rated ball joints engineered for higher load capacity than the OEM units. The result is a control arm that restores factory geometry while delivering longer service life and more consistent handling under the towing and off-road loads these trucks generate.