Gearbox repair

Trust the transmission repair experts

With years of experience we have developed close working relationships with OEM's at a manufacturer level combining our knowledge whilst providing access to affordable genuine parts in order to provide our customers with quality gearbox repairs at a reasonable cost.

Repair Services


Repair or Remanufacture

Need to have your existing transmission repaired? We offer superior transmission repair services for all makes and models of vehicles across South Africa


Exchange Unit Transmissions

We offer a wide range of service exchange transmissions with fantastic turnaround getting you and your vehicle back on the road sooner.


Replacement Transmissions

With close ties to manufacturers we offer competitive pricing on replacement transmissions sourced new from manufacturers or repaired and sourced from core repairs


Transmission diagnostics

Our expert technicians lean on their experience as well as the latest computer diagnostic tools and manufacturer bulletins to accurately diagnose gearbox problems

Transmission fluid change

Healthy transmission oil can ensure your transmission stays well lubricated while providing sufficient pressure and friction to allow the transmission components work optimally and stay cooled.

Quality assured

We are RMI and SABS accredited while also being AATRA and ATSG members ensuring we are always up to date with the latest technolologies and transmission repair methods.

Rex Diff and Gearbox transmission repair centre


Gearbox failures can leave you and your vehicle stranded on the side of the road, no matter what car you drive or how carefully, a transmission problem could occur with seemingly no warning. There are of course some telltale signs however we don’t always recognize them in time.

A warning light may be the first time you become aware that your car even has a problem, sadly gearbox repairs more often than not require specialist repair and diagnosis in order to both accurately find the fault and repair it.

Rex Diff and Gearbox or as we have become known, “RDG” is a leading gearbox repairs specialist with 30 years’ experience in the industry. We have an established reputation for excellent service, expert repairs and a drive to offer our customers as many possible options to find a transmission repair or replacement solution that fits their needs at the right price. With facilities across South Africa and access to manufacturer tools, parts and information we continuously develop our skills to meet industry demand and assist manufacturers at a warranty and aftersales level.

A Gearbox centre
You Can rely on

Find your nearest RDG

What driveline component is presenting with a problem?