Specialised Differentials Work Serving Drivers Australia-Wide
Family owned and operated since 1976
Expert Automotive Differential Services in Sydney

Welcome to D & R Differentials Pty Ltd, your trusted local specialists for all automotive differential service and repair needs across the Sydney metropolitan area and beyond. With over 50 years of experience since 1976, our family-owned and operated business delivers professional, reliable service for all makes and models of cars, trucks and 4WDs. Whether you need diff straightening, housing repairs, overhauls, alterations and ratio changes, we provide services to keep your vehicle running smoothly. On request, we can offer convenient pickup and delivery options.
Complete Car Transmission Services Tailored to Your Vehicle
At D & R Differentials, our comprehensive range of transmission and differential services includes the straightening, repair and manufacturing of differential housings, axles and spindles. We also undertake full servicing, rebuilding and reconditioning of differentials, overhauls, ratio adjustments, installation of lockers and more. No matter if you have a performance car, vintage vehicle or everyday drive, our expert team ensures quality workmanship every time. We also cater to insurance-related repairs with professionalism and care.
Differential Services and Repairs
Our differential services cover everything from straightening bent housings to replacing worn gears and seals, keeping your final drive smooth and reliable.
Rebuilds
If your drivetrain components are worn or damaged, our rebuild services restore functionality and extend your vehicle’s life.
Spindle Repairs
Custom spindle fabrication and repairs are available for a variety of heavy-duty, classic and performance vehicles.
Ratio Changes
Optimise your vehicle’s torque and acceleration with professional gear ratio changes tailored to your driving needs.
Why Choose D & R Differentials for Your Automotive Repairs and Services
Our business philosophy centres on delivering top-quality service combined with exceptional customer satisfaction. Every vehicle entrusted to us receives meticulous care, ensuring repairs and maintenance adhere to the highest safety standards. We go above and beyond to guarantee your differential, axle or spindle performs reliably and safely on the road. With decades of hands-on expertise, our team is equipped to handle simple maintenance jobs as well as complex custom projects, providing peace of mind every step of the way.
Frequently Asked Questions
What types of vehicles do you service?
We cater to all makes and models, including cars, trucks, 4WDs, race cars and vintage vehicles throughout Sydney and Australia.
Do you offer pickup and delivery services?
Yes, we provide pickup and delivery within the Sydney metropolitan area for your convenience.
How long does a typical differential repair or rebuild take?
Timing varies with the extent of the repair, but we aim to complete most repairs efficiently without compromising quality.
Can you perform custom differential work for performance or specialised vehicles?
Absolutely. We specialise in custom spindle manufacturing, ratio changes and modifications for race cars, hobby drivers and customised vehicles.
Glen and the team installed a set of 3.5:1 ratios in my Troopy for an overseas trip. Did a fantastic job and I was really pleased. But the icing on the cake was their amazing aftersales support when I was stuck in Italy - the importer had used a forklift to move the Troopy which bent the tailshaft and snapped the pinion! Anxiety levels went up a touch for me and the misses! My Italian is pathetic and so I relied on Glen as a sounding board to help me navigate the repairs by a local Italian diff shop - he was great and put our minds at rest on so many occasions.
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Puck
The experience these guys have is obvious. Customer service was great, they're extremely knowledgeable and the job was fairly priced. The car did take a little longer than expected but I'd prefer that over a job that was rushed. Highly recommended!
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Vas O.
Did a great job putting a diff brace kit on my gu diff, looks great, easy to deal with, reasonably priced and more than willing to share some advice to go along with it, couldn’t recommend enough.
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Daniel R.
I wouldnt take my car any where else, super nice guys who has the knowledge and experince to repair your car. The guys there, are only to happy to help.
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Steve P.
A massive thanks to Glen and the team for work they put into converting my S14 R200 to a Nismo LSD with R33 hardware. The attention to detail and customer service are second to none, and their skill is something that only comes with decades of experience.
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Cameron T.
Ready to experience expert differential service you can rely on? Call D & R Differentials today on 02 9755 4357 to book your service or request a free quote.




