The gearbox of any vehicle is the very heart of the engine, offering all of the power, function and drivability for your vehicle. When things go wrong with your gearbox, it can be devastating, making it impossible or dangerous to drive and leaving you stuck and in need of repair or in some cases, a replacement. If you have an older car or a vehicle that’s experienced a serious fault, you could need to have the gearbox or transmission rebuilt or replaced completely, but what exactly does this involve? We’ve put together this guide to gearbox replacement and rebuilding so you know exactly what to expect. 

A Rebuild

When it comes to rebuilding your gearbox, the amount of work and the type of labour required can differ on a case-by-case basis. The level of damage, how many parts need replacing and even the waiting times for parts can affect the overall gearbox or transmission rebuild process. In general, however, the process from start to finish usually looks something like this: 

1. Diagnosis – When your vehicle is first brought in for repair, we run full diagnostics to find the source of the issue you are experiencing. This involves using some of the best technology available to run tests, as well as our own expertise to pinpoint exactly which component or components are creating the problem. 
2. The Gearbox is Disassembled – Once we’ve found the source of the problem, we begin to take apart the gearbox or transmission. This is done with due care and attention to ensure that all parts aren’t damaged. 
3. Parts Are Replaced – If any parts are in need of replacement, this is when we start that process. We use only manufacturer warranty-approved and OEM (Original Equipment Manufacturer) parts to ensure the longevity and quality of the rebuild and repair, giving you additional peace of mind that you can get back on the road safely.
4. Cleaning – We clean all of the disassembled parts as needed to ensure that everything goes back together neatly and at top performance quality. 
5. The Gearbox is Reassembled – Reassembly is done with the utmost care and attention to detail. Our mechanics use their expertise to make sure everything lines up perfectly is secured correctly.
6. Full Testing – We test your gearbox before and after reinstalling it into your vehicle to ensure that everything is in proper working order. These tests include performance, fluid pressure, torque features and more.
7. The System is Reinstalled – After the rebuild, it’s time to get your gearbox back into your vehicle. We carefully reinstall the gearbox and make sure everything is connected and aligned correctly and effectively. We can even recondition gearboxes following reinstallation to ensure optimal performance. 

Rebuilding a transmission or gearbox provides us with the opportunity to replace specific parts fully and make sure that no further damage has been caused that may not have been picked up on during diagnosis.

A Replacement

If a rebuild is unlikely to solve the problem, you may need a gearbox replacement. A gearbox replacement is more straightforward than a rebuild, in that it is as simple as removing the old system, and installing a brand-new gearbox. We only use manufacturer-approved parts, and that includes gearbox or transmission systems, ensuring that your vehicle has the right fit. 

Here at Service4Service, we provide gearbox repairs, rebuilds and gearbox replacements, ensuring that your vehicle can get back on the road regardless of the level of damage. Whether you need a small part replaced, a rebuild to get things back to working order or a full gearbox replacement due to extensive damage, we are on hand to help. Simply get in touch with a member of our team or book your vehicle in with us, today.