Extra load means extra Heat!

If your 4WD tows, goes off road or you simply want to maximise your automatic transmission’s longevity and reliability, tailored upgrades improve how it handles load, heat, and demanding driving conditions. Our packages are built to maintain shift quality, manage temperature, and extend durability, giving you a transmission that performs consistently when you need it.

For over fifty years, Ron Hill Automatics has been Australia’s trusted name in automatic transmission services. From preventative servicing to advanced transmission upgrades, we provide reliable solutions that keep your vehicle operating as it should. Every service is supported by decades of expertise, genuine care, and a peace of mind warranty.

Transmissions do require maintenance – your automatic transmission relies on clean, healthy fluid to control hydraulic pressure, lubrication, cooling, and smooth gear changes. Over time, heat and normal wear degrade this fluid, reducing its ability to protect internal components.

Despite so called sealed for life claims, real world driving conditions still cause transmission fluid to break down. Regular servicing replaces worn fluid and filters (where applicable), helping maintain correct operation, consistent shift quality, and long-term reliability.

RHA Pro is Ron Hill Automatics solution for Australia’s towing, touring, and performance 4WD owners. It is designed to maximise your transmission’s reliability and load-handling capabilities through a range of custom, vehicle-specific upgrades.

Whether you are pulling a caravan, carrying added weight, running larger tyres, or travelling remote areas, these demands place extra load and heat into the automatic transmission beyond what the factory system was designed to handle.

Our transmission upgrades are selected to suit how you use your vehicle. They are designed to control operating temperatures, reduce internal wear under load, and deliver the long-term reliability needed for confident towing and remote travel.

Extra load means extra heat and that works against your transmission. Upgrading your automatic transmission helps to reduce overheating, improve reliability and keep your 4WD performing when it matters most.