Track-focused Tamiya 22040 TA08 Lightweight Ball Differential Set 37T OP-2040 - Rear limited-slip upgrade  [22040]

Tamiya 22040 - TA08 Lightweight Ball Differential Set (37T) OP-2040
Price:
£27.30
Brand:
Tamiya
Model:
22040
GTIN:
4950344220403
Condition:
Brand New
Available in warehouse
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Refine rear traction on TA08 PRO with a lightweight ball differential

The Tamiya 22040 TA08 Lightweight Ball Differential Set 37T OP-2040 is designed to reduce rotating mass while adding a usable limited-slip feel to the TA08 PRO rear gearbox. The reduced inertia aids rotation and improves stability when grip levels are low.

Parts and benefits

This differential set brings together parts to enhance drivability and consistency:

  • Aluminum Differential Joints: A and B joint pieces provided for precise engagement and long service life.
  • Lightweight Ball Differential Pulley: 37T pulley cut down for lower mass but solid performance.
  • Differential Plates and Screws: Includes the required plates and fasteners for accurate fitting.
  • High-Quality Bearings and Steel Balls: 850 bearings plus steel balls included for reliable smoothness.
  • Compatibility: Suitable for TA08 PRO use and compatible with TA07 and TRF420 chassis models.

When to choose this diff

Choose this lightweight ball differential when you need more rear rotation and controlled slip on low-traction tracks. For firm grip surfaces, an oil-filled gear diff will generally deliver stronger bite and more consistent lockup.

Yes, the set includes the necessary plates, screws, 850 bearings and steel balls for a complete assembly in the rear gearbox of the TA08 PRO.
Begin with light preload and test on your typical circuit. Increase preload cautiously to reduce free play, checking how the car responds mid-corner and on corner exit to find the best balance.
On low-grip surfaces the controlled slip at the rear can help the car rotate more willingly, which may reduce understeer. Proper setup and matching front-end balance remain important.

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