Transmission Upgrades

Transmission Specialist Adelaide – Trusted Since 1945

At Rowell & Searle Auto, we’re more than just mechanics — we’re Adelaide’s trusted transmission specialists. Established in 1945, our family-run business has proudly served South Australian drivers for over 75 years. Conveniently located in the West End of the CBD, we make servicing easy with early drop-offs and late Tuesday pick-ups by arrangement.

As an RAA Approved Repairer, we deliver honest advice, expert workmanship, and genuine care for every vehicle. Whether you’re searching for an automatic transmission specialist near me, need a gearbox service, or want to explore transmission performance upgrades, our team has the knowledge and experience to keep your car running at its best.

Transmission Upgrades Adelaide

Valve Body Upgrades

A valve body upgrade is one of the most effective ways to improve transmission responsiveness and reduce wear. It helps reduce gear hunting, overheating, and premature clutch wear while delivering:

  • Crisper shift points
  • Shorter gear shifts under load
  • Improved lubrication and cooling
  • Enhanced engine braking (by up to 10%)
  • Increased fuel efficiency

For heavy-duty needs, the Nomad Valve Body Upgrade is Australian-made to handle South Australia’s climate, terrain, and towing demands.

Valve Body Upgrade Adelaide

Gearbox & Transmission Upgrades

Our Gearbox upgrades and transmission rebuilds are ideal for drivers who demand more from their vehicles. Whether you tow caravans, haul heavy loads, or explore rugged tracks, these upgrades provide:

  • Greater torque capacity
  • Reduced heat build-up
  • Longer gearbox lifespan
  • More reliable off-road performance
Gearbox Upgrade Adelaide

Why Choose Rowell & Searle Auto

Our commitment to excellence drives every repair, service, and interaction with our customers.

Family-Owned Since 1945

A proud Adelaide business built on trust, quality workmanship, and genuine customer care for generations.

Qualified & Certified

Every repair is handled by skilled, RAA-approved mechanics ensuring safety and reliability.

Transparent Communication

We keep you updated every step of the way with honest advice and clear progress reports.

Transmission Experts

Specialists in transmission, gearbox, and valve body upgrades for top performance and durability.

Convenient CBD Location

Enjoy easy access with flexible drop-off and pick-up options right in the heart of Adelaide.

See Our Workshop in Action

Watch how our technicians perform precision transmission upgrades and rebuilds using advanced diagnostics.

Frequently Asked Questions

Most makers today tell us that the automatic transmissions in our cars are “filled for life” on the assembly line and will never need servicing. But to take that advice on face value is to court disaster.

The fluid in an automatic transmission is its lifeblood. It helps the system run smoothly and efficiently. Ignoring it can cause significant damage over time.

Transmission fluid cools your transmission and lubricates the gears. Over time, it degrades and loses efficiency, which can lead to damage if not replaced.

Transmission fluid should be changed at the recommended intervals to prevent premature wear and damage. Regular servicing ensures smooth performance.

During service, old fluid is removed and replaced with clean fluid. The transmission filter is also replaced to ensure maximum performance and longevity.

Rowell & Searle Auto has been operating in the Adelaide CBD since 1945, offering expert automatic and manual transmission services, diagnostics, and repairs.

We provide automatic and manual transmission servicing, electronic diagnostics, air conditioning repair, and all types of mechanical servicing and repairs.

We pride ourselves on transparency. We explain every service in simple terms and can even show customers the replaced parts to build trust and confidence.

Our handpicked, qualified mechanics deliver high-quality workmanship with honest, reliable service. We help customers save time and money on car repairs.

You can visit our Adelaide CBD workshop or contact our team via phone or website to schedule your next service or diagnostic check.