Diff Trans (NSW) Pty Ltd is a family owned and operated business specialising in repairs and parts for manual transmissions and differentials. We have over combined experience of 90 years and we are well known for quality workmanship and prompt service. Our machine shop is fully equipped to meet all your needs for different conversions, different housing straightening, bracing, new axles, stud pattern changes, resplining of axles, repairing of gearbox components, and tail shaft modifications.