Superpro Knuckle Kit to suit Isuzu D-Max, MU-X & Mazda BT-50 (Fixes Tyre Wear & Toe)

TRC6680 Steering Knuckle Kit - Bump Steer Correction - 

This product does not require engineering or mod plating and is completely legal. 

VSB 14 & How this product is compliant & legal

VSB 14 is the legal underwriting that affects aftermarket modification, where TRC6680 is classified as owner certified. Meaning that no engineer or certification is required after the product has been installed. This works the exact same as installing an upper control arm, shock, legal lift kit, spring or airbag kit.

ADR & How this product is compliant & legal

The Australian Design Rules (ADRs) are our national standards for road vehicle safety, anti-theft and emissions. All new road vehicles manufactured in Australia and imported new or second-hand vehicles, must comply with the relevant ADRs when they are first supplied to the Australian market. There is no specific underwriting related to steering knuckles, the same as there isnt for control arms, shocks, etc. As such there is no ADR compliance to be followed. However, when testing this product it met OE design standards.

It is essential to highlight that there are no Australian Design Rules (ADRs) specifically addressing the 'robustness of a vehicle.' Consequently, VSB14 serves as an excellent guide and, in practice, is the primary standard to reference when considering 'in-service modifications.'

 Comparison examples of other in-service bolt in modifications that also do not require engineering / mod plate certification but are a similar replacement part / upgrade to the superpro steering knuckle, include:

1.      Leaf spring - Parabolic vs. original: Despite notable differences in shape and design, both comply with Original Equipment (OE) standards.

2.      Front Strut - OE to Formula 4x4 or equivalent: Transitioning from the OE to Formula 4x4 or an equivalent strut demonstrates conformity.

3.      Bull Bar - Before and after fitment: The installation of a bull bar poses no issues.

4.      Control Arm - Replacing a steel control arm with an Alloy Control Arm: This substitution maintains compliance with standards.

SuperPro components, implemented as 'in-service modifications,' have undergone rigorous testing in accordance with appropriate engineering standards, instilling unwavering confidence in the quality of our products.

Benefits

This is a combined kit, that includes a SuperPro fixed upper control arm that gives you additional CAMBER and CASTER, alllowing you to get a correct alignment once your 4WD is lifted. The kit also includes the SuperPro steering knuckle upgrade to fix TOE, which is a issue on both factory (standard height) and lifted D-MAX's, BT-50's and MU-X's. This combined package will fix all tyre wear, alignment problems and improve your handling. 

1. Vastly improved handling and overall vehicle dynamics (building driver confidence and supporting the fact that the car €œjust feels a whole lot better€��)
2. Improved stability (day-to-day driving as well as touring/off-roading)
3. The driver will not have to constantly correct the steering (or fight lane change assist)
4. Less driver fatigue meaning higher levels of concentration and reduced chance of being involved in an accident
5. And finally, reduced tyre wear meaning better contact between the tyre and the road

If you are a trade customer and wish to purchase this part at a special trade price, please call our trade sales department within business hours on 1300 360 922 - this is the direct trade phone number. 1800 045 931 is the general phone number for retail and trade customers. 
 

TRC6590 - Fixed Offset Control Arm Kit

These brand-new steering knuckles resolve this issue and are suitable for both standard height and lifted vehicles.
TRC6680 steering knuckles replicate all the features of the original equipment (OE) knuckles and come with identical mounting provisions for a seamless direct replacement.

It is produced using a hot forged 4140 AISI steel which is then post machined, heat treated and finished in black e-coat for maximum for corrosion protection.

Combine a pair of TRC6680 steering knuckles with a set of TRC6590 upper control arms in your vehicle and you will solve your premature tyre wear, sort your alignment issues and have your vehicle driving well as intended.

Why is bump steer an issue?
Bump steer is the change in toe in or toe out as the ride height of the vehicle changes. This occurs constantly when driving as the vehicle oscillates over the bumps in the road. This movement is magnified by increased weight from towing, high loads, accessories or a suspension lift . An excessive amount of bump steer will cause extreme amounts of premature tire wear, which is what field reports have shown to the development team first-hand and through their own R&D testing.

What does the SuperPro steering knuckle do to help?
The SuperPro steering knuckle relocates the outer tie-rod pickup point to better optimise the steering geometry of the vehicle to reduce the amount of bump-steer at a range ride of heights. The graph below shows the bump steer reduction when the SuperPro steering knuckles are fitted to a lifted vehicle. The bump steer is reduced by about 75% overall, which when combined with the Zeder offset FUCA would reduce a further 10-15%. When the knuckles are installed in a standard-height vehicle, the bump steer is reduced to almost zero.