Gearboxes - what can we do?

Warning signs include grinding or whining noises, leaking oil, delayed or jerky gear changes, gears slipping out of place, or a burning smell.

A well-maintained gearbox can last the lifetime of the vehicle. However, heavy towing, stop-start driving, or neglecting oil changes can shorten its lifespan.

Most manual gearboxes benefit from an oil change every 40,000–60,000 miles. Automatic and dual-clutch systems often need a fluid and filter change at similar intervals—check your manufacturer’s schedule.

It may still move, but continued driving risks major damage and higher repair costs. We recommend immediate inspection.

Manuals use a clutch and driver input. Automatics shift on their own using hydraulic systems and torque converters. Dual-clutch gearboxes use two clutches for very fast, smooth shifts.

Gearboxes are not directly tested, but issues like fluid leaks, insecure mounts or difficulty selecting gears can lead to an M.O.T fail.

Possible causes include worn gearbox mounts, driveshaft or CV joint issues, or internal gearbox wear. We can pinpoint the source.

The differential allows wheels to rotate at different speeds during turns. Regular oil changes and bearing checks help prevent costly repairs. 

Simple seal replacements may take a few hours. Full gearbox rebuilds or replacements typically require 1–2 days, depending on parts availability.

Regular fluid changes, gentle driving (especially when cold), and addressing small leaks or noises early are the best ways to keep your gearbox healthy.