Superfinished differential gears have become increasingly popular in motorsport and high-performance driveline applications. When building a high-performance differential, most people focus on gear ratios, LSD choice, bearings, and setup accuracy....
If you’ve ever asked yourself “What diff ratio do I have?” or wondered how to work out a diff ratio, you’re not alone. Knowing your differential ratio is important when...
When upgrading or rebuilding a differential, most people focus on gears, LSDs, lockers, and bearings. However, the diff bushes also play an important role in how the vehicle performs and...
Choosing the right diff ratio is one of the most important considerations when modifying a vehicle. Whether you’re fitting bigger tyres to a 4WD, swapping transmissions in a classic car,...
When building a race car, one of the most important decisions is choosing the right LSD or diff centre for your race application. The differential plays a major role in...
Solid pinion spacers are one of the most common upgrades we recommend when rebuilding a differential. Replacing the factory crush sleeve with a solid pinion spacer can improve preload stability...
Bearings play a critical role in the strength, durability, and lifespan of a differential. Inside every diff assembly, bearings support rotating components such as the pinion gear and differential carrier....
Many modern vehicles are marketed as having “lifetime differential oil”, meaning the oil is not intended to be serviced during normal vehicle ownership. This can give the impression that diff...
A diff locker that won’t engage can be frustrating, especially when you need it most in off-road conditions. Whether your vehicle is fitted with an air locker, electronic locker (E-Locker),...
If you’re building a 4WD for serious off-road use, one of the biggest decisions you’ll make is whether to run an air locker (e.g. ARB Air Locker) or an electronic...
Mechanical lockers, often referred to as auto lockers or lunch-box lockers, are a type of differential locker that engage automatically when torque is applied to the drivetrain. Unlike air lockers...
Air lockers are one of the most popular types of selectable diff lockers used in off-road vehicles. Unlike automatic lockers that engage on their own, air lockers allow the driver...
Electronic diff lockers, commonly referred to as E-Lockers, are a type of selectable locking differential that use an electrical actuator to lock the differential when required. Like air lockers, E-Lockers...
Diff lockers are designed to provide maximum traction by locking both wheels on an axle together. However, unlike open diffs or limited slip diffs, a diff lock forces both wheels...
Helical limited slip differentials (LSDs) are one of the most popular modern differential upgrades for both street and performance vehicles. Unlike traditional clutch-type LSDs, helical LSDs use a series of...
Ramp rider limited slip differentials are one of the most common LSD designs used in motorsport and performance vehicles. They are particularly popular in drifting, circuit racing, and high-performance street...
A Positraction LSD, often referred to simply as a “Posi”, is one of the most well-known types of clutch-type limited slip differentials. The design became widely known through American performance...
Clutch-type limited slip differentials are one of the most widely used LSD designs in performance vehicles, motorsport applications, and some factory drivetrain setups. These differentials use friction plates inside the...
