Gearbox and transmission repairs for trucks
Grinding gears, slipping drives and jumping out of gear all point to the gearbox. We remove, strip, repair and refit truck transmissions, and we show you the worn parts so you know exactly what was wrong.
Agents Diesel Services repairs and rebuilds truck gearboxes and transmissions in Gauteng, replacing worn gears, bearings and synchros and refitting the unit.
What is included
- Gearbox removal and refitting
- Gear, bearing and synchro replacement
- Shaft and seal repairs
- Clutch and release bearing work
- Differential and propshaft checks
- Gearbox oil and filter service
When to call us
- Grinding when changing gear
- Gearbox jumping out of gear
- Whining noise in drive
- Oil leaks at the gearbox
- Clutch slipping or sticking

Get a quote for gearbox and transmission repairs
Pick the problem, add your truck and your name to send.
Questions about gearbox and transmission repairs
Can you repair a gearbox without replacing it?
Often yes. We strip the unit, replace the worn gears and bearings and rebuild it. If it is beyond repair we tell you honestly.
Do you handle clutch replacements?
Yes. Clutch work is usually done together with the gearbox so you only pay for the labour once.
We do this across Gauteng
Gearbox and Transmission Repairs in JohannesburgGearbox and Transmission Repairs in PretoriaGearbox and Transmission Repairs in CenturionGearbox and Transmission Repairs in MidrandGearbox and Transmission Repairs in GermistonGearbox and Transmission Repairs in Kempton ParkGearbox and Transmission Repairs in BoksburgGearbox and Transmission Repairs in BenoniGearbox and Transmission Repairs in AlbertonGearbox and Transmission Repairs in RoodepoortGearbox and Transmission Repairs in KrugersdorpGearbox and Transmission Repairs in Vereeniging
Other services
Heavy Duty Truck RepairsTruck Engine OverhaulsTruck Servicing and MaintenanceTruck Spray Painting and Cab RepairsDiesel Tank Fitting and Fuel System RepairsTrailer Axle and Bearing MaintenanceTipper and Trailer Body RepairsTruck Wheel, Tyre and Brake RepairsTruck Accident Repairs and Panel BeatingTruck Bed Rubberizing
Truck down? Call us now.
Tell us what is wrong and where the truck is. We will tell you what happens next.