Shifting Gears Automotive logo - performance
Gearbox, transmission and automotive repair specialists
112d Ellis Street, Frankton, Hamilton

Specialist gearbox, diff and driveline repairs

Crunching gears, whining, hard shifting, leaks or driveline noises can point to several different components.
Shifting Gears Automotive diagnoses, strips and rebuilds manual gearboxes and differentials in-house, along with clutch and transfer case work. Gary brings more than 20 years of specialist gearbox and drivetrain experience to the workshop.
To arrange an assessment, contact Shifting Gears Automotive.

Manual Gearbox & Differential Repairs - Overview:

Manual gearbox and differential repairs, rebuilds and upgrades completed in-house.
  • Manual gearbox diagnosis and in-house rebuilds
  • Differential repairs and rebuilds
  • Clutch replacement
  • Limited-slip diff and Truetrac upgrades
  • Gear ratio changes
  • Transfer case repairs and rebuilds
"I recently dropped two diffs off to Gary to have one LSD built. His attention to detail and understanding what I wanted was evident in his work. So stoked I chose to go here and will definitely take any other projects I have to him! I was so happy with the job, I put the diff in and drove down to the shop the next day!"
Shaun Perry
"Have had many diffs and gearboxs built and serviced by gary with flawless results in a timely matter and better prices than others around wont go anywhere else!"
Dylan

Ready to get Started?

Book in your service via our online booking form.You’ll receive confirmation when your request is confirmed by our workshop.

Manual gearbox and differential repairs by experienced specialists

  • Manual gearboxes, differentials and transfer cases rebuilt in-house
  • Clutch replacement, LSD work and gear ratio changes available
  • More than 20 years of specialist gearbox and drivetrain experience
Manual gearbox and differential repairs for Hamilton and Waikato drivers

Pinpointing gearbox and differential faults

Road testing and hoist checks help identify whether a noise or vibration is coming from the gearbox, differential, clutch or another part of the driveline.
This helps make sure the right component is repaired before anything is stripped down.

For broader mechanical fault finding, see vehicle servicing and repairs.

Manual gearbox rebuilds in-house

Manual gearboxes are stripped, cleaned and inspected in the workshop.
Synchros, gears, bearings and engagement components are checked for wear before the gearbox is rebuilt, refitted and road tested.

Differential repairs and upgrades

Differential work includes repairs, rebuilds, limited-slip diff work and gear ratio changes.
Ratios can be changed to suit acceleration, cruising speed or the way the vehicle is used.
For performance applications, see performance transmission and drivetrain upgrades.

Clutch replacements and transfer case repairs

Clutch replacement and transfer case repairs can be handled as part of the wider driveline.
If the gearbox is already out, the team can also identify other components worth addressing while access is open.

For advice on manual gearbox, differential, clutch or transfer case faults, contact Shifting Gears Automotive.

Crunching between gears, hard shifting, leaks, vibration, whining, clunks and jumping out of gear can point to gearbox, differential, clutch, driveshaft, CV or mount issues.

The process starts with a road test under different driving conditions. If needed, the vehicle goes on the hoist and may be run while the sound is checked from underneath.

Yes. If the differential is already being repaired or rebuilt, a ratio change can be considered to suit how the vehicle is used.

Yes. Transfer case repairs and rebuilds are handled for four-wheel-drive vehicles, with faults considered as part of the whole driveline rather than as an isolated noise.

Frequently Asked Questions for Manual Gearbox & Differential Repairs

Manual Gearbox & Differential Repairs Summary:

  • What: Manual gearbox, differential, clutch and transfer case repairs and rebuilds.
  • Where: Manual gearbox and differential repairs for Hamilton and Waikato drivers.
  • Who for: Drivers with hard shifting, gearbox noise, diff whine, clutch issues or other driveline faults.
Gearbox, transmission and automotive repair specialists
Hamilton/Frankton