Differential Tools Explained - What You Need and Why

Differential tools are essential for anyone working on a ring and pinion setup. There are tools needed for the job, and tools that will simply make the job easier. Here are the tools you need on hand to get the job done.


Bearing Pullers

Bearing puller
For quick removal, bearing pullers are the best use of time and money. Without these, you'll be cutting into bearings and potentially damaging other components. Save yourself the headache and invest in a good puller instead.


Differential Spreader

Diff spreader

This is an important tool for differential installers. Stretching the housing open far enough to allow the shims to be added for pre-load is the method recommended by OEM manufactures, and it's all but required on a lot of different axles.


Set-Up Bearings

Set up bearings

For quick installation and removal by hand, set-up bearings offer a slip fit rather than interference fit. You can do this quickly, reducing shim adjustment time, and you don’t risk bearing damage by taking them to the press.


Shim and Race Drivers

Shim driver

These drivers offer quick and easy installation with limited chance of shim or race damage. Shim drivers work with factory cast shims and aftermarket shims and allow the shims to be driven into the housing with the proper preload. Race drivers are set to the specific dimension for each bearing race. Once they are driven into the housing, they align the race in order to prevent damage.


Pinion Bearing Torque Wrench

Pinion bear torq wrench

This tool directly measures a variety of torque values when tightening fasteners. The pointer moves clockwise or counterclockwise to measure torque. These wrenches can be easily calibrated to zero before use by bending the point to zero.


Spanner Wrenches

Spanner wrench

For OEM and aftermarket adjusters, this professional tool is a must have. Use a spanner wrench to avoid damage to the adjustors or threads in the housing while quickly and accurately setting the backlash and bearing preload. While a universal spanner wrench will work in most cases, a correctly sized spanner wrench will work better. It reduces the chance of slippage, damage and injury.


Air Locker Test Gauge

Air locker test gauge

This tool is made to effectively determine the supply pressure or detect a loss of pressure in the air system of ARB Air Lockers by connecting to the airline and supplying shop air. It’s quick and easy to use, requires no special tooling, and weighs just over 8 ounces.

If you have questions about these or any other tool, get in touch with the experts at Complete Offroad. Browse parts online or give us a call at 888-233-9667 – we are happy to help!

  • Posted on   07/23/15 at 12:28:08 AM   by Jason  | 
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Posted in Tech
Tagged with differential tools, ring and pinion, differential maintenance

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