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Technical / Sale Enquiry Form

Please complete the form below:

Engine Type:
Transmission Type:
Are you able to get your vehicle to one of our branches nationwide, for a free diagnostic service?

Or will you prefer to purchase a loose gearbox?

Would you prefer to buy another gearbox, or do you have time to send yours in for repair?

Which warranty would you require?

Would you be able to get your old failed gearbox back to us (At your own cost)?

Who would you use to remove and fit your gearbox?

Can you provide us with an engine code and/or gearbox code (You may have to ask a technical person for these details)?

Great! Please visit any of our branches for a free diagnostic test while you wait.
If you cant make a trip right away and would like to know more about what the job might cost, or how long it will take, please answer the questions below:

Would you prefer to buy another gearbox, or do you have time to repair your gearbox and possibly save money?

Which warranty would you require?

8 - 3 =

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Mayfair Gearbox's 23 Years In Business

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What a diff is and how it works

What a diff is and how it works.

A differential is a piece of machinery found in all modern cars, trucks, SUVs and Bakkies. It has 3 main jobs:

  • To direct engine power at the wheels
  • The second is to slow the speed of the transmission before it gets to the wheels.
  • To transmit the power to the wheels while allowing them to rotate at different speeds This is how the differentia; got its name.
  • In Layman terms, the differential is a device that splits the engine torque of a vehicle two ways, allowing each output of power to spin at a different speed.

    The differential is found in all modern cars and trucks, and also in almost all all-wheel-drive vehicles. These all-wheel-drive vehicles need a differential between each wheel as all of them are drive wheels. The whole point of 4x4 vehicles is so that the wheels spin independently so that you can drive over rocks and other harsh terrain.

    Part-time four-wheel-drive systems don't have a differential between the front and rear wheels. They are rather locked together so that the front and rear wheels have to turn at the same speed. This is why these vehicles are hard to turn on concrete when the four-wheel-drive system is engaged.

    Why You Need a Differential

    Your car wheels spin at different speeds when you drive, especially when turning. Each wheel of your car travels a different distance when you turn, the inside wheel travels a shorter distance than the outside wheels. A simple speed, distance and time calculation will reveal that the wheels that travel a shorter distance, travel slower. The front wheels also travel a shorter distance than the rear wheels.

    Non-driven wheels in your car are the wheels that don’t get power from the engine. There is nothing connecting the 2 non-driven wheels thus each one spins on its own thus they don’t need a differential between them. The 2 driven wheels are however linked together. This facilitates the fact that they can be powered by 1 engine and transmission. Without a differential, the wheels would be forced to rotate at the same speed but turning would be quite difficult and bad for your car.

    One tyre would actually have to slip to allow the car to turn but with todays roads and modern technology in tyres, it is quite difficult to make a tyre slip.

    Mayfair gearbox has got you covered when it comes to gearboxes and differentials.

    Quick Facts

    Who We Are

    Mayfair Gearbox is a National and International supplier of fleet reman gearboxes, diffs and propshafts. We are led by a Management Team of true industry professionals who have pioneered the gearbox remanufacturing industry. Mayfair Gearbox has been established for 20 years in the Industry.

    What We Do

    Mayfair Gearbox is the solution to limit your fleet’s downtime! We are quality driven to provide only the finest remanufactured gearboxes, diffs and propshafts.

    What Makes Us The Best

    Commitment and integrity to provide outstanding quality, exceptional service and support at all times, to you our valued Customer. Approved by most manufacturers and a National Footprint of 14 Branches.

    Product Division

    Heavy Commercial & Buses
    Truck Gearbox Repairs Bus Gearbox Repairs
    Earthmoving 4 x 4
    Earthmoving Gearbox Repairs 4X4 Gearbox Repairs
    Passenger Manual Passenger Automatic
    Manual Gearbox Repairs Automatic Gearbox Repairs

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    Recycle More

    Remanufacturing = Sustainability + Efficiency

    Apply for Jobs

    Mayfair Gearbox's 23 Years In Business

    Book A Test Drive