21 Dingley Avenue, Dandenong VIC 3175



Diff Repairs Melbourne

The Trusted Diff Specialist in Dandenong, Melbourne

Welcome to G&J Differential Services, the diff specialists. Located in Dandenong, Melbourne, we possess over 20 years of industry experience and proudly service the needs of domestic and commercial vehicle drivers alike. If you have a query or need related to diffs, axles or gearboxes, we’re happy to help!

Diff Repairs Melbourne

We specialise in providing diff repairs and conversions of the highest standard for all vehicle makes and models including front and rear wheel drives, light commercial vehicles and trucks. At G&J Differential Services we are committed to providing our diff repair services to customers from Bentleigh, Clayton, Narre Warren, and beyond. Our superior customer service and reasonable prices firmly places us a leader in our field. When it comes to diff gears, discover just how G & J Differential Services can help you.

Discover the full G & J Differentials experience!

G&J Differentials is also home to brands V&J Motors,etc ensuring all your vehicle maintenance, repair and spare parts needs are covered.

V & J Motors

Ensure your vehicle remains in peak condition with the trusted and reliable expertise of the V & J Motors team. We specialise in providing comprehensive mechanical repairs and servicing for all makes and models of vehicles. Our qualified and highly experienced mechanics will conduct stringent safety checks on all parts of the vehicle. We also offer Logbook and scheduled servicing to ensure your vehicle continues to operate at its best.

Ace Balancing

Protect the integrity of your vehicle by ensuring its tail shaft is balanced by the professional team at Ace Balancing. An unbalanced tail shaft will start to vibrate which can cause further damage. Ace Balancing will ensure it is properly realigned so your vehicle won't suffer.

Diff Conversions & 9 Inch Diff Conversions - Melbourne

Explore our complete range of vehicle services

In addition to being the go-to team for vehicle owners needing a diff specialist in Melbourne, we also offer a variety of other services. These include:

  • Change over differentials on all makes and models
  • Diff housing and axle straightening
  • Diff repairs and ratio changeovers
  • High speed diffs for 4x4sMaintenance and replacement of diff gears
  • 9-inch diff conversions Melbourne-wide
  • Mechanical repairs and servicing
  • New and second-hand parts
  • Plus much more!

Click here to read more about the services we provide at our Dandenong workshop.

Diff Lockers - Melbourne

Integral for the automatic control of a vehicle’s differential systems diff lockers provide an increased amount of traction when operating your vehicle. Thanks to our years of outstanding experience the team at G&J Differential Services have installed and repaired outstanding and customised diff lockers across Melbourne from Clayton, Hampton Park, Mordialloc, and Noble Park motorists promptly and affordably.

Differential Gear Melbourne

At G&J Differential Services our skilled and trained technicians use the best parts and components to ensure that your vehicle operates at optimal capacity without failure. Our innovative and prompt service allows us to deliver a greater level of vehicle stability and control. Thanks to our dedicated differential gear services Melbourne motorists can trust us to deliver a balanced and unmatched service to our customers.

Limited Slip & Truetrac Differential - Melbourne

Street & Strip Gears

We also stock and extensive range of high quality parts to suit all your differential needs under our Street & Strip Gears brand. From custom made axles to diff gears to yokes, bearings and everything in between, you’ll find it all here. For a greater level of service we offer both Limited Slip and Truetrac Differentials for our Melbourne customers.

As a leading diff repairs and conversion specialist in Dandenong, Melbourne for over 20 years, you can trust in the quality and standards of service and advice we offer. If you’d like to book your vehicle in or just want further information on how we can help you, get in touch with us today.

Ford Diff Conversions

At G&J Differential Services we are passionate about unleashing the true power of your vehicle. By completing detailed and affordable for Ford diff conversions for motorists from Dandenong, Clayton, Endeavour Hills, Moorabbin, Rowville, and beyond we aim ensure that your vehicle’s engine output is successfully translated to control and speed.

Engine Changeover Melbourne

In addition to our extensive range of differential replacement, repair, and maintenance services our skilled mechanics and technicians excel at delivering a wide range of other vehicle services. Drawing on over 20 years of experience we have successfully helped countless engine changeovers for customers across Melbourne. Through our utilisation of the best parts and components we can guarantee that by coming to us for your vehicle’s needs.

Custom Made Axles Melbourne

At G&J Differential Services we understand that each of our customers and clients have different and unique desires for the output of their vehicles. To provide you with the best results depending on the size and shape of your vehicle we proudly deliver exceptional custom made axles for customers across Melbourne. To find out more about the benefits of our services feel free to contact us today!


Change over differentials on all makes and models

We can provide assistance no matter what type of car you own and drive.

Diff repairs and ratio changeovers

Everything from diff repairs through to diff ratio upgrades and changeovers.

9” diff conversions

We can supply and fit 9" diff conversions for any vehicle make and model.


We can fit, modify, repair and balance tailshafts for almost any vehicle.

Custom made axles

With over 20 years of experience, we can provide quality custom made axles.

Centre Bearings

We offer centre bearing repair and replacement as well as maintenance.


We can supply and fit a wide range of high-quality new and second-hand parts, with options suitable for any vehicle make and model.

We can provide expert repair services for tailshafts, including modifying and balancing. Learn more today.

With years of experience behind us, we have the expertise to provide a wide range of diff housing and axle straightening services.

Looking for a high speed diff for a 4x4 or off-road vehicle? We can install high speed diffs for a range of makes and models.


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