About us

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Diff Trans (NSW) Pty Ltd are specialists in repairs and parts for manual transmissions and differentials.

An Australian owned family business with a reputation for quality workmanship and prompt service. Diff Trans has over ninety years of combined experience under one roof.

Our machine shop is fully equipped to meet all your needs for diff conversions, diff housing straightening, bracing, new axles, stud pattern changes, resplining of axles, repairing of gearbox components and tail shaft modifications.

Diff Trans (NSW) Pty Ltd specialise in all your car, 4WD, truck and industrial driveline needs;
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    Manual Transmissions
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    Diff Conversions
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We stock a large range of parts utilising the following brands
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  • Mark Williams
  • Strange Engineering / U.S. Gear
  • Eaton ( Detroit Locker, Detroit True Trac LSD & E Lockers )
  • Moser Engineering
  • Dana / Spicer
  • Drivetech
  • Motive Gear
  • Terrain Tamer
  • Nitro Gear and Axles
  • 9”Plus
  • Yukon Gear and Axles
  • Sonnax Driveline Products

Committed To Delivering The Highest Level of Mechanical Expertise
To All Our Customers Throughout Sydney

call us today
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For that extra cash flow, why not try our reconditioned service or exchange units? We guarantee speedy turnover
and prompt delivery to ensure that you and your customers are satisfied.

Our friendly staff look forward to hearing from you!

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Brands We Serve
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We are one of the leading auto repair shops in Fairey Rd South Windsor serving customers in The Diff Trans. All mechanic services are performed by highly qualified mechanics.

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