How do you know if your gearbox needs replacing?

You may need to replace your gearbox if you notice unusual noises, such as grinding or whining, during operation. Other signs include difficulty in shifting gears, slipping gears, or leaking fluid around the gearbox. Additionally, if the vehicle vibrates excessively or exhibits a loss of power, it may indicate gearbox issues that warrant replacement. Regular inspections and maintenance can help identify problems early on.